ICP-OES (inductively coupled plasma-optical emission spectrometry)-based impurity removal device for measuring sponge platinum

Abstract

The invention relates to the technical field of ICP-OES (Inductively Coupled Plasma-Optical Emission Spectrometer) detection, in particular to an ICP-OES-based impurity removal device for measuring sponge platinum. Comprising a discharging box, a sponge platinum powder collecting box and a magnetic impurity collecting box are slidably connected into the discharging box, a separating box is fixedly connected to the top end of the discharging box, a first motor is installed on the outer wall of one side of the separating box, and a sorting assembly used for separating sponge platinum powder from magnetic impurities is rotatably connected to the inner wall of the separating box; an electromagnet is matched with a first semispherical shell and a second semispherical shell which are made of a magnetic conductive material, and the first semispherical shell and the second semispherical shell are separated, clamped and separated, and an automatic process switching mode that an opening faces downwards is adopted; the sponge platinum powder is fed, magnetic impurities are strongly adsorbed and physically separated through high-speed centrifugal rotation, and the sponge platinum powder and the magnetic impurities are separately discharged and directionally collected, so that the accuracy and reliability of sponge platinum determination are effectively improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of ICP-OES detection, and particularly relates to a device for removing impurities in sponge platinum based on ICP-OES. BACKGROUND

[0002] In the field of precious metal analysis, sponge platinum as an important industrial raw material, its purity directly affects the subsequent processing performance and product quality. At present, ICP-OES (inductively coupled plasma optical emission spectrometry) is a commonly used method for determining impurity elements in sponge platinum, but its accuracy is highly dependent on the quality of sample pretreatment.

[0003] In the traditional sample preparation process, sponge platinum powder often mixes with magnetic impurities (such as iron, nickel and other metal particles), these impurities not only interfere with the spectral signal of ICP-OES, leading to high background value and element misjudgment, but also may damage the key components such as atomizer or plasma torch tube. The existing technology mostly uses magnetic selection rod adsorption or screening method to remove magnetic impurities, but there are problems such as low efficiency, residual of fine particles, easy introduction of secondary pollution, etc. In addition, manual operation is difficult to realize closed sorting, and powder scattering will cause loss of precious metals and environmental pollution. Therefore, it is urgent to develop a magnetic impurity removal device with high efficiency, automation and strong airtightness to improve the accuracy and reliability of ICP-OES analysis, and at the same time meet the dual requirements of precious metal recovery rate and environmental protection in laboratory and industrial scenes.

[0004] After searching, in the prior art, the authorized patent document with publication number CN119845932A and publication date of 2025.04.18 discloses a metal impurity detection equipment and its detection method, which relates to the field of ICP technology. The detection equipment includes a spectrometer body, a sampling groove is formed on the front side of the spectrometer body, and a plug-in port for inserting a sampling tube is arranged on the top of the sampling groove; the other end of the sampling tube is inserted with a sampling end, a peristaltic pump is fixedly arranged in the sampling groove, and the peristaltic pump is used to sequentially convey the sample to be sampled through the sampling end, the sampling tube and the plug-in port into the spectrometer body; a sampler is also arranged on one side of the sampling groove, and a filter module is arranged in the sampler to filter the solid impurities in the sample; compared with the prior art, the present application can effectively filter the solid impurities in the sample before inputting into the spectrometer body, so as to avoid the phenomenon that the solid impurities enter the spectrometer body and cause damage to the equipment and affect the detection precision.

[0005] But the device still has the following defects: although the solid impurities in the sample can be effectively filtered before the input spectrometer body to avoid the solid impurities into the spectrometer body to cause equipment damage and affect the detection precision. But the device does not remove the magnetic impurities (such as iron, nickel and other metal particles) mixed in the sponge platinum powder during sample preparation, which causes the interference of these impurities on the ICP-OES spectrum signal, resulting in high background value and element misjudgment, and may also damage the atomizer or plasma torch tube and other key components. SUMMARY

[0006] In view of the above problems, the present application provides a kind of based on ICP-OES's determination sponge platinum impurity removal device, including blanking box, the blanking box is slidably connected with sponge platinum powder collection box and magnetic impurity collection box, the top of the blanking box is fixedly connected with separation tank, the outer wall of the side of the separation tank is installed with first motor, the inner wall of the separation tank is rotatably connected with sorting component for separating sponge platinum powder and magnetic impurities; The side of the blanking box is provided with a mounting bracket, and the top of the mounting bracket is provided with a blanking hopper, and the discharge end of the blanking hopper is provided with a telescopic blanking mechanism. The sorting component includes two groups of support frames, and the center of the side wall of each group of support frames is fixedly connected with a rotating shaft. Two groups of the rotating shafts are rotatably connected with two groups of bidirectional threaded rods, and the first sliding block and the second sliding block are threadedly connected on the two groups of bidirectional threaded rods. First hemispherical shells are arranged between the two groups of first sliding blocks, and second hemispherical shells are arranged between the two groups of second sliding blocks. The first hemispherical shells and the second hemispherical shells are made of magnetically conductive material, and the outer walls of the first hemispherical shells and the second hemispherical shells are attached with electromagnets.

[0007] Further, one group of the rotating shafts is rotatably connected with the inner wall of the separation tank, and the other group of the rotating shafts is drivingly connected with the output end of the first motor. An electric slip ring is arranged at the connection between one group of the rotating shafts and the inner wall of the separation tank, and the electric slip ring is used to energize the two groups of electromagnets.

[0008] Further, one end of each group of the support frames is fixedly connected with a transmission box, two groups of synchronous wheels are rotatably connected in the transmission box, and synchronous belts are sleeved on the two groups of synchronous wheels. A second motor is installed in the transmission box, the output end of the second motor is drivingly connected with the center of one group of synchronous wheels, and the centers of the two groups of synchronous wheels are respectively fixedly connected with one end of the two groups of bidirectional threaded rods.

[0009] Furthermore, the bottom end of the first hemispherical shell is provided with an annular snap-fit ​​groove, and the top end of the second hemispherical shell is provided with an annular snap-fit ​​block. The annular snap-fit ​​block is movably snapped into the annular snap-fit ​​groove, and a flexible sealing layer is added at the snap-fit ​​point.

[0010] Furthermore, a first strip-shaped toothed plate is fixedly connected to one side of the inner wall of each of the two sets of support frames, and a flip shaft is fixedly connected to both sides of the first hemispherical shell and the second hemispherical shell. A gear is fixedly connected to the other end of each of the two sets of flip shafts. The gears on both sides of the first hemispherical shell are rotatably connected to the two sets of first sliders, and the gears on both sides of the second hemispherical shell are rotatably connected to the two sets of second sliders.

[0011] Furthermore, the two sets of first strip-shaped toothed plates are respectively movably meshed with gears on both sides of the first hemispherical shell, and the other inner wall of the two sets of support frames is fixedly connected with second strip-shaped toothed plates. The two sets of second strip-shaped toothed plates are respectively movably meshed with gears on both sides of the second hemispherical shell, and the vertical distance between the first strip-shaped toothed plates and the second strip-shaped toothed plates and the center of the two sets of support frames is the same.

[0012] Furthermore, a feeding trough is provided at the bottom of the inner wall of the separation box, and a feeding guide mechanism is provided on the inner wall of the feeding box. The feeding guide mechanism is located directly below the feeding trough and is located in the middle and above the sponge platinum powder collection box and the magnetic impurity collection box.

[0013] Furthermore, the feeding guide mechanism includes a drive box, which is installed on the outer wall of the feeding box. A third motor is installed on one outer wall of the drive box. The output end of the third motor is connected to a worm gear, and a worm wheel is meshed on the worm gear. A guide shaft is fixedly connected to the center of the worm wheel.

[0014] Furthermore, one end of the guide shaft passes through the inner wall of one side of the feeding box and is rotatably connected to the inner wall of the other side of the feeding box. A guide plate is fixedly connected to the guide shaft, and the guide plate is movably fitted to the bottom of the feeding trough.

[0015] Furthermore, the telescopic feeding mechanism includes a telescopic feeding pipe and a discharge pipe. One end of the telescopic feeding pipe is connected to the discharge end of the feeding hopper, and the other end of the telescopic feeding pipe is connected to the discharge pipe. An electric telescopic rod is installed on the feeding hopper, and the output end of the electric telescopic rod is connected to the discharge pipe. Two sets of telescopic rods are symmetrically arranged between the discharge pipe and the feeding hopper.

[0016] The beneficial effects of this invention are: 1. By using an electromagnet and a first hemispherical shell made of magnetic material to cooperate with a second hemispherical shell, an automated process of separation-clamping-separation with the opening facing downwards is achieved. This process enables the feeding of sponge platinum powder, high-speed centrifugal rotation for strong adsorption and physical separation of magnetic impurities, and separate discharge and directional collection of sponge platinum powder and magnetic impurities. This process effectively removes magnetic impurities from the sponge platinum powder. The sponge platinum powder after removing magnetic impurities is then taken out for ICP-OES determination. This effectively avoids the adverse effects of residual magnetic impurities on the measurement results, thereby effectively improving the accuracy and reliability of sponge platinum determination.

[0017] 2. By having the first hemispherical shell and the second hemispherical shell move synchronously in opposite directions, the gears on both sides of the first hemispherical shell mesh with the first toothed plate, causing the first hemispherical shell to flip synchronously to a downward-facing state during its movement. Similarly, the gears on both sides of the second hemispherical shell mesh with the second toothed plate, causing the second hemispherical shell to flip to a downward-facing state during its movement. This allows the residual sponge platinum powder inside the first and second hemispherical shells to be fully discharged, making the discharge of sponge platinum powder more efficient and thorough.

[0018] 3. The third motor drives the worm gear to rotate, which in turn drives the guide shaft to rotate synchronously. This causes the guide plate to rotate until it is in contact with the bottom right or left side of the feeding trough. This connects the feeding trough with the interior of the sponge platinum powder collection box or the magnetic impurity collection box, thereby enabling automatic separation, discharge, and collection of sponge platinum powder and magnetic impurities for subsequent processing.

[0019] 4. The electric telescopic rod drives the discharge pipe toward the sorting component, extending the telescopic discharge pipe directly above the opening of the second hemispherical shell. The sponge platinum powder in the hopper is then guided into the second hemispherical shell through the discharge pipe, effectively avoiding the loss of precious metals and environmental pollution caused by powder scattering due to excessive discharge distance. After the sponge platinum powder discharge operation is completed, the electric telescopic rod drives the discharge pipe to reset, effectively preventing the discharge pipe from affecting the sorting operation of the sorting component. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the main structure according to an embodiment of the present invention is shown; Figure 2An embodiment of the present invention is shown. Figure 1 Enlarged view of point A in the middle; Figure 3 A schematic diagram of the sorting component structure according to an embodiment of the present invention is shown; Figure 4 A cross-sectional view of the sorting component structure according to an embodiment of the present invention is shown; Figure 5 An embodiment of the present invention is shown. Figure 4 Enlarged view of point B in the middle; Figure 6 A schematic diagram of the centrifugal sorting state of the sorting component according to an embodiment of the present invention is shown; Figure 7 A cross-sectional view of the internal structure of the separation box and the feeding box according to an embodiment of the present invention is shown; Figure 8 An embodiment of the present invention is shown. Figure 7 Enlarged diagram of point C in the middle.

[0022] In the diagram: 100, feeding box; 110, sponge platinum powder collecting box; 120, magnetic impurity collecting box; 200, separating box; 210, feeding chute; 300, first motor; 400, sorting assembly; 410, support frame; 411, bidirectional threaded rod; 412, first slider; 413, second slider; 414, first toothed plate; 415, second toothed plate; 420, rotating shaft; 430, transmission box; 431, synchronous pulley; 432, synchronous belt; 433, second motor; 440, first hemispherical... Housing; 441, snap-fit ​​groove; 450, second hemispherical housing; 451, annular snap-fit ​​block; 460, electromagnet; 470, tilting shaft; 480, gear; 500, mounting bracket; 600, hopper; 700, telescopic feeding mechanism; 710, telescopic feeding pipe; 720, discharge pipe; 730, electric telescopic rod; 740, telescopic rod; 800, feeding guide mechanism; 810, drive box; 820, third motor; 830, worm gear; 840, worm wheel; 850, guide shaft; 860, guide plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0024] This invention provides an ICP-OES-based device for determining and removing platinum impurities in sponges, including a feeding box 100; exemplarily, such as... Figure 1 As shown.

[0025] The feeding box 100 is slidably connected to a sponge platinum powder collection box 110 and a magnetic impurity collection box 120. Both the sponge platinum powder collection box 110 and the magnetic impurity collection box 120 are located at the bottom of the inner wall of the feeding box 100. The top of the feeding box 100 is fixedly connected to a separation box 200. A first motor 300 is installed on one outer wall of the separation box 200. A sorting component 400 is rotatably connected to the inner wall of the separation box 200. A mounting frame 500 is provided on one side of the feeding box 100, and a feeding hopper 600 is installed on the top of the mounting frame 500. A telescopic feeding mechanism 700 is provided at the discharge end of the feeding hopper 600. Specifically, the sponge platinum powder is fed into the feeding hopper 600, and the sponge platinum powder enters the sorting component 400 through the telescopic feeding mechanism 700. The sorting component 400 sorts the sponge platinum powder and the magnetic impurities doped in the sponge platinum powder, so that the sponge platinum powder enters the sponge platinum powder collection box 110, and the magnetic impurities enter the magnetic impurity collection box 120. Then, the sponge platinum powder in the sponge platinum powder collection box 110 is taken out for ICP-OES determination. By removing the magnetic impurities, the accuracy of sponge platinum determination is improved.

[0026] For example, such as Figure 2 As shown.

[0027] The telescopic feeding mechanism 700 includes a telescopic feeding pipe 710 and a discharge pipe 720. One end of the telescopic feeding pipe 710 is connected to the discharge end of the feeding hopper 600, and the other end of the telescopic feeding pipe 710 is connected to the discharge pipe 720. An electric telescopic rod 730 is installed on the feeding hopper 600. The output end of the electric telescopic rod 730 is connected to the discharge pipe 720. Two sets of telescopic rods 740 are symmetrically arranged between the discharge pipe 720 and the feeding hopper 600. Specifically, the electric telescopic rod 730 drives the discharge pipe 720 to move toward the sorting component 400, causing the telescopic discharge pipe 710 to extend. This facilitates the introduction of the sponge platinum powder in the hopper 600 into the sorting component 400 through the discharge pipe 720 for impurity removal. After the sponge platinum powder discharge operation is completed, the electric telescopic rod 730 drives the discharge pipe 720 to reset, preventing the discharge pipe 720 from affecting the sorting operation of the sorting component 400.

[0028] For example, such as Figures 3-6 As shown.

[0029] The sorting assembly 400 includes two sets of support frames 410. A rotating shaft 420 is fixedly connected to the center of the side wall of each set of support frames 410. One set of rotating shafts 420 is rotatably connected to the inner wall of the separation box 200, and the other set of rotating shafts 420 is drive-connected to the output end of the first motor 300. A transmission box 430 is fixedly connected to one end of each set of support frames 410. Two sets of synchronous pulleys 431 are rotatably connected inside the transmission box 430. A synchronous belt 432 is fitted onto each set of synchronous pulleys 431. A second motor 433 is installed inside the transmission box 430. The output end of the second motor 433 is drive-connected to the center of one set of synchronous pulleys 431. A bidirectional threaded rod 411 is rotatably connected to each set of support frames 410. One end of each set of bidirectional threaded rods 411 is fixedly connected to the center of the two sets of synchronous pulleys 431, respectively. Both sets of bidirectional threaded rods 411 are threadedly connected to a first slider 412 and a second slider 413. The first slider 412 and the second slider 413 are symmetrically distributed about the central axis of the bidirectional threaded rod 411. A first hemispherical shell 440 is provided between the two sets of first sliders 412, and a second hemispherical shell 450 is provided between the two sets of second sliders 413. The bottom end of the first hemispherical shell 440 is provided with an annular retaining groove 441, and the bottom end of the second hemispherical shell 450 is provided with an annular retaining groove 441. A ring-shaped locking block 451 is provided at the top, which is movably locked with the ring-shaped locking groove 441, and a flexible sealing layer is added at the locking point. The first hemispherical shell 440 and the second hemispherical shell 450 are both made of magnetically conductive material. Electromagnets 460 are fitted to the outer walls of the first hemispherical shell 440 and the second hemispherical shell 450. An electric slip ring is provided at the connection between the rotating shaft 420 and the inner wall of the separation box 200. The electric slip ring is used to energize the two sets of electromagnets 460. Both sides of the first hemispherical shell 440 and the second hemispherical shell 450 are fixedly connected to a rotating shaft 470, and the other end of the two sets of rotating shafts 470 are fixedly connected to a gear 480. The gears 480 on both sides of the first hemispherical shell 440 are rotatably connected to two sets of first sliders 412 respectively, and the gears 480 on both sides of the second hemispherical shell 450 are rotatably connected to two sets of second sliders 413 respectively. Each of the two sets of support frames 410 has a first strip toothed plate 414 fixedly connected to one inner wall. The two sets of first strip toothed plates 414 are movably meshed with gears 480 on both sides of the first hemispherical shell 440. Each of the two sets of support frames 410 has a second strip toothed plate 415 fixedly connected to the other inner wall. The two sets of second strip toothed plates 415 are movably meshed with gears 480 on both sides of the second hemispherical shell 450. The first strip toothed plate 414 and the second strip toothed plate 415 are at the same vertical distance from the center of the two sets of support frames 410. Specifically, in the initial state, the first hemispherical shell 440 and the second hemispherical shell 450 are separated. After the sponge platinum powder is introduced into the second hemispherical shell 450 by the telescopic feeding mechanism 700, the second motor 433 drives the two sets of synchronous wheels 431 to rotate synchronously, causing the two sets of bidirectional threaded rods 411 to rotate and drive the two sets of first sliders 412 and two sets of second sliders 413 to move synchronously in opposite directions. This causes the first hemispherical shell 440 and the second hemispherical shell 450 to engage and form a sealed spherical space, sealing the sponge platinum powder within this spherical space. Figure 6 In the state shown, by conducting electricity to the two sets of electromagnets 460, magnetic attraction is generated on the inner walls of the first hemispherical shell 440 and the second hemispherical shell 450, which adsorbs magnetic impurities in the sponge platinum powder. Furthermore, the first motor 300 drives the two sets of support frames 410 to rotate synchronously, causing the first hemispherical shell 440 and the second hemispherical shell 450 to rotate the sponge platinum powder and magnetic impurities at high speed. As a result, the magnetic impurities are thrown to the inner walls of the first hemispherical shell 440 and the second hemispherical shell 450 by centrifugal force and are adsorbed, thus making the adsorption of magnetic impurities more thorough.

[0030] For example, such as Figure 7 and Figure 8 As shown.

[0031] The bottom of the inner wall of the separation box 200 is provided with a feeding trough 210. The inner wall of the feeding box 100 is provided with a feeding guide mechanism 800. The feeding guide mechanism 800 is located directly below the feeding trough 210. The feeding guide mechanism 800 is located in the middle and above the sponge platinum powder collection box 110 and the magnetic impurity collection box 120. The feeding guide mechanism 800 includes a drive box 810, which is installed on the outer wall of the feeding box 100. A third motor 820 is installed on one side of the outer wall of the drive box 810. The output end of the third motor 820 is connected to a worm gear 830. A worm wheel 840 is meshed on the worm gear 830. A guide shaft 850 is fixedly connected to the center of the worm wheel 840. One end of the guide shaft 850 passes through one side of the inner wall of the feeding box 100 and is rotatably connected to the other side of the inner wall of the feeding box 100. A guide plate 860 is fixedly connected to the guide shaft 850. The guide plate 860 is movably attached to the bottom of the feeding trough 210. Specifically, the third motor 820 drives the worm gear 830 to rotate, which in turn drives the worm wheel 840 to rotate the guide shaft 850 synchronously. This causes the guide plate 860 to rotate until it is in contact with the bottom right side of the feeding trough 210. At this time, the feeding trough 210 is connected to the sponge platinum powder collection box 110. The second motor 433 drives the two sets of synchronous wheels 431 to rotate synchronously, which in turn drives the two sets of bidirectional threaded rods 411 to rotate and move the two sets of first sliders 412 and the two sets of second sliders 413 synchronously in opposite directions. This causes the first hemispherical shell 440 and the second hemispherical shell 450 to separate and move synchronously in opposite directions. At this time, some of the sponge platinum powder falls to the bottom of the inner wall of the separation box 200 and slides through the feeding trough 210 and the guide plate 860 into the sponge platinum powder collection box 110. Furthermore, the first hemispherical shell 440 and the second hemispherical shell 450 continue to move synchronously in opposite directions, causing the gears 480 on both sides of the first hemispherical shell 440 to mesh with the first toothed plate 414, so that the first hemispherical shell 440 rotates synchronously to a downward-facing state during its movement. Similarly, the gears 480 on both sides of the second hemispherical shell 450 mesh with the second toothed plate 415, so that the second hemispherical shell 450 also rotates to a downward-facing state during its movement. Figure 7 The state shown allows the residual sponge platinum powder inside the first hemispherical shell 440 and the second hemispherical shell 450 to be fully poured out; Furthermore, after the sponge platinum powder is fully poured out, the third motor 820 drives the worm gear 830 to rotate, causing the worm wheel 840 to drive the guide shaft 850 to rotate synchronously, so that the guide plate 860 rotates to a state of contact with the bottom left side of the feeding trough 210. At this time, the feeding trough 210 and the magnetic impurity collection box 120 are internally connected. Then, the two sets of electromagnets 460 are de-energized, so that the inner walls of the first hemispherical shell 440 and the second hemispherical shell 450 lose their magnetism. As a result, the magnetic impurities adsorbed on the inner walls of the first hemispherical shell 440 and the second hemispherical shell 450 fall into the magnetic impurity collection box 120 for centralized processing, thereby effectively realizing the removal of magnetic impurities in the sponge platinum powder, and separating and collecting the sponge platinum powder and magnetic impurities for subsequent processing.

[0032] The working principle of the ICP-OES-based device for determining platinum impurities in sponges proposed in this invention is as follows: In the initial state, the first hemispherical shell 440 and the second hemispherical shell 450 are separated. The sponge platinum powder is introduced into the feeding hopper 600. The electric telescopic rod 730 drives the discharge pipe 720 to move towards the sorting component 400, so that the telescopic feeding pipe 710 extends directly above the opening of the second hemispherical shell 450. The sponge platinum powder in the feeding hopper 600 is introduced into the second hemispherical shell 450 through the discharge pipe 720. After the sponge platinum powder feeding operation is completed, the electric telescopic rod 730 drives the discharge pipe 720 to reset, so as to avoid the discharge pipe 720 affecting the sorting operation of the sorting component 400.

[0033] The second motor 433 drives two sets of synchronous pulleys 431 to rotate synchronously, causing two sets of bidirectional threaded rods 411 to rotate and drive two sets of first sliders 412 and two sets of second sliders 413 to move synchronously in opposite directions. This causes the first hemispherical shell 440 and the second hemispherical shell 450 to engage and form a sealed spherical space, sealing the sponge platinum powder within this spherical space. Figure 6 In the state shown, by conducting electricity to the two sets of electromagnets 460, magnetic attraction is generated on the inner walls of the first hemispherical shell 440 and the second hemispherical shell 450, thereby adsorbing magnetic impurities in the sponge platinum powder.

[0034] The first motor 300 drives the two sets of support frames 410 to rotate synchronously, causing the first hemispherical shell 440 and the second hemispherical shell 450 to rotate the sponge platinum powder and magnetic impurities at high speed. As a result, the magnetic impurities are thrown to the inner walls of the first hemispherical shell 440 and the second hemispherical shell 450 by centrifugal force and are adsorbed, thus making the adsorption of magnetic impurities more thorough.

[0035] After the adsorption of magnetic impurities is completed, the third motor 820 drives the worm gear 830 to rotate, causing the worm wheel 840 to drive the guide shaft 850 to rotate synchronously, so that the guide plate 860 rotates to a state that is in contact with the bottom right side of the feeding trough 210. At this time, the feeding trough 210 is connected to the sponge platinum powder collection box 110. The second motor 433 drives the two sets of synchronous wheels 431 to rotate synchronously, so that the two sets of bidirectional threaded rods 411 rotate and drive the two sets of first sliders 412 and the two sets of second sliders 413 to move synchronously in opposite directions, so that the first hemispherical shell 440 and the second hemispherical shell 450 separate and move synchronously in opposite directions. At this time, some sponge platinum powder falls to the bottom of the inner wall of the separation box 200 and slides through the feeding trough 210 and the guide plate 860 into the sponge platinum powder collection box 110 for collection.

[0036] The first hemispherical shell 440 and the second hemispherical shell 450 continue to move synchronously in opposite directions, causing the gears 480 on both sides of the first hemispherical shell 440 to mesh with the first toothed plate 414, thus causing the first hemispherical shell 440 to flip synchronously to a downward-facing state during its movement. Similarly, the gears 480 on both sides of the second hemispherical shell 450 mesh with the second toothed plate 415, causing the second hemispherical shell 450 to also flip to a downward-facing state during its movement. Figure 7 The state shown allows the residual platinum powder in the first hemispherical shell 440 and the second hemispherical shell 450 to be fully poured out.

[0037] After the sponge platinum powder is fully poured out, the third motor 820 drives the worm gear 830 to rotate, causing the worm wheel 840 to drive the guide shaft 850 to rotate synchronously. This causes the guide plate 860 to rotate until it is in contact with the bottom left side of the feeding trough 210. At this time, the feeding trough 210 and the magnetic impurity collection box 120 are connected internally. Then, the two sets of electromagnets 460 are de-energized, causing the inner walls of the first hemispherical shell 440 and the second hemispherical shell 450 to lose their magnetism. This causes the magnetic impurities adsorbed on the inner walls of the first hemispherical shell 440 and the second hemispherical shell 450 to fall into the magnetic impurity collection box 120 for centralized processing. This effectively removes magnetic impurities from the sponge platinum powder and allows for the separation and collection of the sponge platinum powder and magnetic impurities for subsequent processing.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for determining and removing platinum impurities in sponge based on ICP-OES, comprising a feeding box, characterized in that: The feeding box is slidably connected to a sponge platinum powder collection box and a magnetic impurity collection box. A separation box is fixedly connected to the top of the feeding box. A first motor is installed on one outer wall of the separation box. A sorting component for separating sponge platinum powder from magnetic impurities is rotatably connected to the inner wall of the separation box. A mounting frame is provided on one side of the feeding box, and a feeding hopper is installed on the top of the mounting frame. A telescopic feeding mechanism is provided at the discharge end of the feeding hopper. The sorting assembly includes two sets of support frames, and a rotating shaft is fixedly connected to the center of the side wall of each set of support frames; Both sets of support frames are rotatably connected with bidirectional threaded rods, and both sets of bidirectional threaded rods are threaded with a first slider and a second slider; A first hemispherical shell is provided between the two sets of the first sliders, and a second hemispherical shell is provided between the two sets of the second sliders; Both the first hemispherical shell and the second hemispherical shell are made of magnetically conductive material, and electromagnets are attached to the outer walls of both the first hemispherical shell and the second hemispherical shell.

2. The ICP-OES-based device for determining platinum impurities in sponges according to claim 1, characterized in that: One set of the rotating shafts is rotatably connected to the inner wall of the separation box, and the other set of the rotating shafts is drive-connected to the output end of the first motor. An electric slip ring is provided at the connection between one set of the rotating shafts and the inner wall of the separation box. The electric slip ring is used to energize the two sets of electromagnets.

3. The ICP-OES-based device for determining platinum impurities in sponges according to claim 1, characterized in that: One end of each of the two sets of support frames is fixedly connected to a transmission box. Two sets of synchronous pulleys are rotatably connected inside the transmission box. A synchronous belt is fitted on each of the two sets of synchronous pulleys. A second motor is installed inside the transmission box. The output end of the second motor is connected to the center of one set of synchronous pulleys. The center of each of the two sets of synchronous pulleys is fixedly connected to one end of each of the two sets of bidirectional threaded rods.

4. The ICP-OES-based device for determining platinum impurities in sponges according to claim 1, characterized in that: The bottom end of the first hemispherical shell is provided with an annular snap-fit ​​groove, and the top end of the second hemispherical shell is provided with an annular snap-fit ​​block. The annular snap-fit ​​block is movably snapped into the annular snap-fit ​​groove, and a flexible sealing layer is added at the snap-fit ​​point.

5. The ICP-OES-based device for determining platinum impurities in sponges according to claim 4, characterized in that: A first strip-shaped toothed plate is fixedly connected to one side of the inner wall of each of the two sets of support frames. A flip shaft is fixedly connected to both sides of the first hemispherical shell and the second hemispherical shell. A gear is fixedly connected to the other end of each of the two sets of flip shafts. The gears on both sides of the first hemispherical shell are rotatably connected to the two sets of first sliders, and the gears on both sides of the second hemispherical shell are rotatably connected to the two sets of second sliders.

6. The ICP-OES-based device for determining platinum impurities in sponges according to claim 5, characterized in that: The two sets of first strip-shaped toothed plates are respectively connected to the gears on both sides of the first hemispherical shell. The other inner wall of the two sets of support frames is fixedly connected to a second strip-shaped toothed plate. The two sets of second strip-shaped toothed plates are respectively connected to the gears on both sides of the second hemispherical shell. The vertical distance between the first strip-shaped toothed plate and the second strip-shaped toothed plate and the center of the two sets of support frames is the same.

7. The ICP-OES-based device for determining platinum impurities in sponges according to claim 1, characterized in that: The bottom of the inner wall of the separation box is provided with a feeding trough, and the inner wall of the feeding box is provided with a feeding guide mechanism. The feeding guide mechanism is located directly below the feeding trough and is located in the middle and above the sponge platinum powder collection box and the magnetic impurity collection box.

8. The ICP-OES-based device for determining platinum impurities in sponges according to claim 7, characterized in that: The material feeding guide mechanism includes a drive box, which is installed on the outer side wall of the material feeding box. A third motor is installed on one side of the outer wall of the drive box. The output end of the third motor is connected to a worm gear, and a worm wheel is meshed on the worm gear. A guide shaft is fixedly connected to the center of the worm wheel.

9. The ICP-OES-based device for determining platinum impurities in sponges according to claim 8, characterized in that: One end of the guide shaft passes through the inner wall of one side of the feeding box and is rotatably connected to the inner wall of the other side of the feeding box. A guide plate is fixedly connected to the guide shaft, and the guide plate is movably fitted to the bottom of the feeding trough.

10. The ICP-OES-based device for determining platinum impurities in sponges according to claim 1, characterized in that: The telescopic feeding mechanism includes a telescopic feeding pipe and a discharge pipe. One end of the telescopic feeding pipe is connected to the discharge end of the feeding hopper, and the other end of the telescopic feeding pipe is connected to the discharge pipe. An electric telescopic rod is installed on the feeding hopper, and the output end of the electric telescopic rod is connected to the discharge pipe. Two sets of telescopic rods are symmetrically arranged between the discharge pipe and the feeding hopper.

Images