A sampling and testing device for platinum smelting

Abstract

This invention provides a sampling and testing device for platinum smelting. The device includes a mounting plate, a support assembly, a testing assembly, an anti-splash assembly, a collection assembly, a connecting assembly, an adsorption assembly, a grinding assembly, and an electrically operated telescopic rod. By incorporating the anti-splash assembly, the collection assembly, and the connecting assembly, high-pressure gas is ejected from a high-pressure nozzle on the annular screen plate, forming an annular air curtain that provides protection for the tested product. If the tested product breaks and splashes during hardness testing, the splashes are blocked by the air curtain and fall through the annular trough into the filter screen in the collection tank, protecting the operator and improving the device's safety performance. Simultaneously, the air curtain protects the tested product from external environmental interference, improving the accuracy of hardness testing.

Description

Technical Field

[0001] This invention relates to the field of platinum smelting equipment, and more particularly to a sampling and testing device for platinum smelting. Background Technology

[0002] In mineral classification, platinum group element minerals belong to the native platinum subgroup, including native minerals of iridium, rhodium, palladium, and platinum. Platinum group element minerals are all isometric crystals; single crystals are extremely rare, occasionally occurring as small cubic or octahedral grains. They generally occur as irregular granular, dendritic, botryoidal, or massive aggregates. Their color and streak are silvery-white to steel-gray; they have a metallic luster and are opaque. They have no cleavage, exhibit serrated fracture, and are malleable. They are good conductors of electricity and heat. In platinum smelting, samples are taken, shaped, and then subjected to hardness testing. The hardness testing equipment is also called a hardness tester. A hardness tester is a specialized instrument used to measure the surface hardness of coatings. Hardness testers are divided into benchtop hardness testers and portable hardness testers. Benchtop hardness testers are mainly used in laboratories and have the advantage of high accuracy, while portable hardness testers are suitable for installed machinery or permanently assembled parts and are easy to carry.

[0003] When existing testing devices test hardness, the test head gradually approaches the test product, causing the product to break or even shatter. The flying debris can hit workers, posing a certain safety hazard.

[0004] Therefore, it is necessary to provide a sampling and testing device for platinum smelting to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a sampling and testing device for platinum smelting.

[0006] The present invention provides a hardness testing device for testing the production and processing of products, comprising: a mounting plate; a support assembly mounted on the mounting plate; a testing assembly mounted on the mounting plate; an anti-splash assembly mounted on the testing assembly; a collection assembly mounted on the support assembly; and a connecting assembly mounted on the anti-splash assembly.

[0007] Preferably, the support assembly includes a support plate, support columns, pads, cylinders, and piston rods. The support plate is installed below the mounting plate, and two sets of support columns are symmetrically fixedly installed at the lower end of the support plate. Two sets of pads are symmetrically fixedly installed at the bottom of the two sets of support columns. Two sets of cylinders are symmetrically fixedly installed on the support plate, and two sets of piston rods are respectively fixedly installed on the output ends of the two sets of cylinders. The tops of the two sets of piston rods are fixedly connected to the bottom of the mounting plate.

[0008] Preferably, the detection assembly includes an annular groove, a support base, a fixing rod, a U-shaped plate, a hydraulic cylinder, a hydraulic rod, and a hardness detector. The annular groove is formed on the mounting plate, and the support base is fixedly installed in the annular groove by the fixing rod. The U-shaped plate is fixedly installed on the mounting plate by fixing bolts with its notch facing the support assembly. The hydraulic cylinder is vertically fixedly installed on the U-shaped plate, and the hydraulic rod is fixedly installed on the output end of the hydraulic cylinder. The hardness detector is fixedly installed on the lower end of the hydraulic rod and located directly above the support base.

[0009] Preferably, the anti-splash assembly includes an annular screen, an air pump, an air supply pipe, an air intake pipe, an annular mounting groove, and high-pressure nozzles. The annular screen is mounted on a U-shaped plate, and the annular mounting groove is opened in the annular screen with its opening facing downwards. Multiple high-pressure nozzles are arranged in a ring around the annular mounting groove. The air pump is mounted on the bottom of the support plate, and one end of the air intake pipe and the air supply pipe are respectively installed at the air pump's inlet and outlet. The other end of the air supply pipe is mounted on the annular screen and connected to the multiple high-pressure nozzles.

[0010] Preferably, the collection assembly includes a collection bucket, an annular limiting block, a filter screen, and an arc-shaped positioning block. The arc-shaped positioning block is fixedly installed on the support plate, and the collection bucket is located on the support plate, abutting against the arc-shaped positioning block and directly below the annular groove. The upper opening of the collection bucket abuts against the lower side wall of the mounting plate and surrounds the annular groove. The annular limiting block is fixedly installed inside the collection bucket and located near its lower end. The filter screen is located inside the collection bucket and abuts against the upper side wall of the annular limiting block.

[0011] Preferably, the connecting assembly includes an installation port, a connector, a first fixing ring, a second fixing ring, a spring, and a connecting port. The installation port is vertically opened in the support plate, and the connector is located in the installation port and communicates with the suction pipe. The first fixing ring is fixedly installed on the inner wall of the installation port, and the second fixing ring is fixedly sleeved on the connector. The first and second fixing rings are elastically connected by a spring. The connecting port is vertically opened at the bottom of the collection bucket, and the connector is inserted into the connecting port. The upper end of the connector extends a short distance above the installation port, and an annular guide groove is provided on the outer wall of the connector.

[0012] Preferably, the connecting assembly includes an installation port, a connector, a first fixing ring, a second fixing ring, a spring, and a connecting port. The installation port is vertically opened in the support plate, and the connector is located in the installation port and communicates with the suction pipe. The first fixing ring is fixedly installed on the inner wall of the installation port, and the second fixing ring is fixedly sleeved on the connector. The first and second fixing rings are elastically connected by a spring. The connecting port is vertically opened at the bottom of the collection bucket, and the connector is inserted into the connecting port. The upper end of the connector extends a short distance above the installation port, and an annular guide groove is provided on the outer wall of the connector.

[0013] Preferably, a grinding assembly is mounted on the mounting plate. The grinding assembly includes a motor, a rotating shaft, a grinding disc, a protective cover, and a slide rail. The motor is fixedly mounted on the bottom of the mounting plate and located near its end. The rotating shaft is vertically fixedly mounted on the output end of the motor. The grinding disc is mounted on the mounting plate and fixedly connected to the upper end of the rotating shaft. The slide rail is horizontally mounted on the mounting plate, and the protective cover covers the grinding disc and is mounted on the slide rail and slidably connected to it.

[0014] Preferably, two electric telescopic rods are fixedly installed on the U-shaped plate, and the annular curtain plate is fixedly installed on the output end of the two electric telescopic rods. Multiple high-pressure nozzles installed in the annular mounting groove are arranged in a conical shape.

[0015] Compared with related technologies, the sampling and testing device for platinum smelting provided by the present invention has the following advantages:

[0016] 1. This invention, by setting up anti-splash components, collection components, and connecting components, sprays high-pressure gas from the high-pressure nozzle on the annular screen plate, forming an annular air curtain to provide annular protection for the test product. When the test product breaks and splashes during hardness testing, the splashes are blocked by the air curtain and fall from the annular trough into the filter screen in the collection bucket, protecting the staff and improving the safety performance of the device. At the same time, the air curtain protects the test product from interference from the external environment, improving the accuracy of hardness testing.

[0017] 2. By setting up an adsorption component, when the suction tube generates suction and creates negative pressure at the bottom of the collection bucket, part of the negative pressure will be generated at the adsorption port along with the insertion tube and connecting tube, adsorbing the test product placed on the support base, thereby having a certain limiting effect on the test product and improving the placement stability of the test product.

[0018] 3. By setting up a grinding component, the protective cover can be slidable to expose the grinding disc before the hardness test of the test product. Before the hardness test of the test product, the side to be tested is aligned with the grinding disc and ground to keep the surface to be tested flat, which facilitates the hardness test and improves the accuracy of the hardness test of the test product.

[0019] 4. The annular curtain in this invention can be raised and lowered by an electric telescopic rod. Combined with the conical air curtain sprayed by multiple high-pressure nozzles, the closer the annular curtain is to the mounting plate, the greater the strength of the air curtain and the better the anti-splash effect. At the same time, the closer the annular curtain is to the mounting plate, the larger the internal range of the air curtain will be. Adjustments can be made for hardness testing of different products, thus improving the applicability of the device. Attached Figure Description

[0020] Figure 1 A schematic diagram of a preferred embodiment of the sampling and testing device for platinum smelting provided by the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the sampling and testing device for platinum smelting provided by the present invention during the installation or disassembly of the collection component;

[0022] Figure 3 This is a schematic diagram of the detection component in this invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the collection bucket in this invention;

[0024] Figure 5 This is a schematic diagram of the anti-splash component in the present invention;

[0025] Figure 6 This is a schematic diagram of the arc-shaped positioning block in this invention;

[0026] Figure 7 This is a schematic diagram of the grinding component in this invention;

[0027] Figure 8 This is a schematic diagram showing the state of the annular screen panel in use according to the present invention.

[0028] Numbered components in the diagram: 1. Mounting plate; 2. Support assembly; 21. Support plate; 22. Support column; 23. Foot pad; 24. Cylinder; 25. Piston rod; 3. Detection assembly; 31. Annular groove; 32. Support base; 33. Fixing rod; 34. U-shaped plate; 35. Hydraulic cylinder; 36. Hydraulic rod; 37. Hardness detector; 4. Anti-splash assembly; 41. Annular curtain panel; 42. Air pump; 43. Air supply pipe; 44. Suction pipe; 45. Annular mounting groove; 46. High-pressure nozzle; 5. 51. Collection component; 52. Collection bucket; 53. Annular limiting block; 54. Filter screen; 6. Arc-shaped positioning block; 7. Connecting component; 61. Mounting port; 62. Connector; 63. First fixing ring; 64. Second fixing ring; 65. Spring; 66. Connecting port; 7. Adsorption component; 71. Adsorption port; 72. Insertion tube; 73. Connecting tube; 8. Grinding component; 81. Motor; 82. Rotating shaft; 83. Grinding disc; 84. Protective cover; 85. Slide rail; 9. Electric telescopic rod. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Please refer to the following: Figure 1-8 ,in, Figure 1 A schematic diagram of a preferred embodiment of the sampling and testing device for platinum smelting provided by the present invention; Figure 2This is a schematic diagram of the structure of the sampling and testing device for platinum smelting provided by the present invention during the installation or disassembly of the collection component; Figure 3 This is a schematic diagram of the detection component in this invention; Figure 4 This is a schematic diagram of the internal structure of the collection bucket in this invention; Figure 5 This is a schematic diagram of the anti-splash component in the present invention; Figure 6 This is a schematic diagram of the arc-shaped positioning block in this invention; Figure 7 This is a schematic diagram of the grinding component in this invention; Figure 8 This is a schematic diagram showing the state of the annular screen panel in use according to the present invention. It includes: mounting plate 1, support assembly 2, detection assembly 3, anti-splash assembly 4, collection assembly 5, connecting assembly 6, adsorption assembly 7, grinding assembly 8, and electric telescopic rod 9.

[0031] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the support assembly 2 includes a support plate 21, support columns 22, pads 23, cylinders 24 and piston rods 25. The support plate 21 is installed below the mounting plate 1, and two sets of support columns 22 are symmetrically fixedly installed at the lower end of the support plate 21. Two sets of pads 23 are symmetrically fixedly installed at the bottom of the two sets of support columns 22. Two sets of cylinders 24 are symmetrically fixedly installed on the support plate 21, and two sets of piston rods 25 are respectively fixedly installed on the output end of the two sets of cylinders 24. The top of the two sets of piston rods 25 are fixedly connected to the bottom of the mounting plate 1.

[0032] It should be noted that the support plate 21, support column 22, and pad 23 in this device support the device, and the cylinder 24 controls the extension and retraction of the piston rod 25, thereby controlling the lifting and lowering operation of the components installed on the mounting plate 1, in conjunction with the collection assembly 5.

[0033] refer to Figure 1 , Figure 2 and Figure 3 As shown, the detection component 3 includes an annular groove 31, a support base 32, a fixing rod 33, a U-shaped plate 34, a hydraulic cylinder 35, a hydraulic rod 36, and a hardness detector 37. The annular groove 31 is formed on the mounting plate 1, and the support base 32 is fixedly installed in the annular groove 31 by the fixing rod 33. The U-shaped plate 34 is fixedly installed on the mounting plate 1 by fixing bolts and the notch is set facing the support component 2. The hydraulic cylinder 35 is vertically fixedly installed on the U-shaped plate 34, and the hydraulic rod 36 is fixedly installed on the output end of the hydraulic cylinder 35. The hardness detector 37 is fixedly installed at the lower end of the hydraulic rod 36 and located directly above the support base 32.

[0034] It should be noted that: the support base 32 is used to support the test product that needs to be tested for hardness, the annular groove 31 is used for the passage of broken test product residue, and is used in conjunction with the anti-splash component 4. The U-shaped plate 34 is used for the installation support of the hydraulic cylinder 35, the hydraulic rod 36 and the hardness detector 37. The hydraulic cylinder 35 controls the extension and retraction of the hydraulic rod 36, thereby controlling the hardness detector 37 to move closer to the patient and away from the test product on the support base 32.

[0035] refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, the anti-splash assembly 4 is installed on the detection assembly 3. The anti-splash assembly 4 includes an annular screen 41, an air pump 42, an air supply pipe 43, an air intake pipe 44, an annular mounting groove 45, and high-pressure nozzles 46. The annular screen 41 is installed on the U-shaped plate 34, and the annular mounting groove 45 is opened in the annular screen 41 with the opening facing downward. Multiple high-pressure nozzles 46 are arranged in a ring around the annular mounting groove 45. The air pump 42 is installed at the bottom of the support plate 21, and one end of the air intake pipe 44 and the air supply pipe 43 are respectively installed at the air inlet and outlet of the air pump 42. The other end of the air supply pipe 43 is installed on the annular screen 41 and connected to the multiple high-pressure nozzles 46.

[0036] It should be noted that before performing hardness testing on the test product placed on the support 32, the air pump 42 draws in air through the suction pipe 44 and then delivers the air to the high-pressure nozzle 46 on the annular curtain plate 41 through the air delivery pipe 43, spraying out high-pressure gas. The sprayed high-pressure gas forms an annular air curtain to provide annular protection for the test product. If the test product breaks and splashes during hardness testing, the splashes will be blocked by the air curtain and fall from the annular trough 31 into the collection component 5, protecting the personnel and improving the safety performance of the device. At the same time, the air curtain protects the test product and prevents external environmental interference, improving the accuracy of hardness testing.

[0037] refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the collection component 5 is installed on the support component 2. The collection component 5 includes a collection bucket 51, an annular limiting block 52, a filter screen 53, and an arc-shaped positioning block 54. The arc-shaped positioning block 54 is fixedly installed on the support plate 21, and the collection bucket 51 is located on the support plate 21, abutting against the arc-shaped positioning block 54 and located directly below the annular groove 31. The upper opening of the collection bucket 51 abuts against the lower side wall of the mounting plate 1 and is set to cover the annular groove 31. The annular limiting block 52 is fixedly installed inside the collection bucket 51 and is set near its lower end. The filter screen 53 is located inside the collection bucket 51 and abuts against the upper side wall of the annular limiting block 52.

[0038] It should be noted that: the annular limiting block 52 inside the collection bucket 51 blocks the filter screen 53, and splashes and residues will fall onto the filter screen 53 for collection. The suction pipe 44 is connected to the bottom of the collection bucket 51. When the air pump 42 is running, it creates a negative pressure at the bottom of the collection bucket 51, giving the collection bucket 51 a downward suction force to absorb the residues and splashes. The residues and splashes are blocked by the filter screen 53 and collected inside the collection bucket 51.

[0039] The arc-shaped positioning block 54 is used to position the collection bucket 51 so that the collection bucket 51 is located directly below the annular trough 31, which facilitates the installation and removal of the collection bucket 51.

[0040] refer to Figure 4 , Figure 5 and Figure 6 As shown, the connecting component 6 is installed on the anti-splash component 4. The connecting component 6 includes an installation port 61, a connector 62, a first fixing ring 63, a second fixing ring 64, a spring 65, and a connecting port 66. The installation port 61 is vertically opened in the support plate 21, and the connector 62 is located in the installation port 61 and communicates with the suction pipe 44. The first fixing ring 63 is fixedly installed on the inner wall of the installation port 61, and the second fixing ring 64 is fixedly sleeved on the connector 62. The first fixing ring 63 and the second fixing ring 64 are elastically connected by the spring 65. The connecting port 66 is vertically opened at the bottom of the collection bucket 51, and the connector 62 is inserted into the connecting port 66. The upper end of the connector 62 extends a short distance above the installation port 61, and an annular guide groove is provided on the outer wall of the connector 62.

[0041] It should be noted that when the collection bucket 51 is connected to the suction pipe 44, the mounting plate 1 rises, placing the collection bucket 51 on the support plate 21 and abutting against the arc-shaped positioning block 54. During the movement of the collection bucket 51, when the side wall of the collection bucket 51 contacts the connector 62, the collection bucket 51 contacts the annular guide groove on the connector 62, causing the connector 62 in the mounting port 61 to be pressed downward. The second fixing ring 64 presses the spring 65, causing the connector 62 to move downward into the mounting port 61. When the collection bucket 51 is located directly below the annular groove 31, under the elastic force of the spring 65, the connector 62 is inserted into the connection port 66 at the bottom of the collection bucket 51, realizing the connection between the suction pipe 44 and the bottom of the collection bucket 51, so that the collection bucket 51 cooperates with the anti-splash assembly 4 to collect splashes and residues.

[0042] refer to Figure 1 , Figure 4 and Figure 7As shown, an adsorption assembly 7 is installed on the support base 32. The adsorption assembly 7 includes an adsorption port 71, an insertion tube 72, and a connecting tube 73. The adsorption port 71 is vertically opened in the support base 32, and the insertion tube 72 is vertically fixedly installed at the bottom of the support base 32 and communicates with the adsorption port 71. The connecting tube 73 is vertically installed on the filter screen 53, and the bottom of the connecting tube 73 penetrates the filter screen 53 and is located directly above the connecting port 66. The bottom of the insertion tube 72 is inserted into the opening at the upper end of the connecting tube 73.

[0043] It should be noted that after the collection bucket 51 is connected to the suction pipe 44, the mounting plate 1 descends, causing the lower end of the insertion tube 72 to be inserted into the upper opening of the connecting pipe 73. When the suction pipe 44 generates suction and creates negative pressure at the bottom of the collection bucket 51, part of the negative pressure will be generated by the insertion tube 72 and the connecting pipe 73, causing negative pressure at the adsorption port 71, which will adsorb the test product placed on the support base 32, thereby providing a certain limiting effect on the test product and improving the placement stability of the test product.

[0044] refer to Figure 1 and Figure 7 As shown, a grinding assembly 8 is installed on the mounting plate 1. The grinding assembly 8 includes a motor 81, a rotating shaft 82, a grinding disc 83, a protective cover 84, and a slide rail 85. The motor 81 is fixedly installed on the bottom of the mounting plate 1 and is located near its end. The rotating shaft 82 is vertically fixedly installed on the output end of the motor 81. The grinding disc 83 is installed on the mounting plate 1 and is fixedly connected to the upper end of the rotating shaft 82. The slide rail 85 is horizontally installed on the mounting plate 1. The protective cover 84 covers the grinding disc 83 and is installed on the slide rail 85 and is slidably connected to it.

[0045] It should be noted that: the motor 81 can control the rotating shaft 82 to drive the grinding disc 83 to rotate rapidly, and the protective cover 84 can slide on the slide rail 85 to protect the grinding disc 83. Before performing hardness testing on the test product, the protective cover 84 can be slid to expose the grinding disc 83. Before performing hardness testing on the test product, the side that needs to be tested is aligned with the grinding disc 83 and ground to keep the surface that needs to be tested flat, which facilitates hardness testing and improves the accuracy of hardness testing of the test product.

[0046] refer to Figure 3 and Figure 8As shown, two electric telescopic rods 9 are fixedly installed on the U-shaped plate 34, and the annular curtain plate 41 is fixedly installed on the output end of the two electric telescopic rods 9. Multiple high-pressure nozzles 46 installed in the annular mounting groove 45 are arranged in a conical shape. The electric telescopic rods 9 can control the raising and lowering of the annular curtain plate 41. With the conical air curtain sprayed by the multiple high-pressure nozzles 46, the closer the annular curtain plate 41 is to the mounting plate 1, the greater the strength of the air curtain and the better the anti-splash effect. At the same time, the closer the annular curtain plate 41 is to the mounting plate 1, the larger the internal range of the air curtain will be. Adjustments can be made for hardness testing of different test products, thus improving the applicability of the device.

[0047] The working principle of this invention is as follows: During use, before hardness testing of the test product, cylinder 24 controls piston rod 25 to extend, causing mounting plate 1 to rise and placing collection bucket 51 on support plate 21. During the movement of collection bucket 51, when the side wall of collection bucket 51 contacts connector 62, collection bucket 51 contacts the annular guide groove on connector 62, causing connector 62 in mounting port 61 to be pressed downwards. Second fixing ring 64 presses spring 65, causing connector 62 to move downwards into mounting port 61. When collection bucket 51 is directly below annular groove 31, connector 62, under the elastic force of spring 65, is inserted into connection port 66 at the bottom of collection bucket 51, connecting suction pipe 44 to the bottom of collection bucket 51. Then, cylinder 24 controls mounting plate 1 to descend, inserting... The lower end of tube 72 is inserted into the upper opening of connecting tube 73. The test product is placed on support base 32. Air pump 42 draws air through suction tube 44. When suction tube 44 generates suction and creates negative pressure at the bottom of collection bucket 51, part of the negative pressure will cause negative pressure at adsorption port 71 along with tube 72 and connecting tube 73, adsorbing the test product placed on support base 32. Then, air is delivered to high-pressure nozzle 46 on annular curtain plate 41 through air supply tube 43 to spray high-pressure gas, so that the sprayed high-pressure gas forms an annular air curtain to protect the test product. Hydraulic cylinder 35 controls hydraulic rod 36 to extend, so that hardness detector 37 gradually approaches the test product to perform hardness test. When the test product breaks and splashes during hardness test, the splashes will be blocked by air curtain and fall from annular trough 31 into collection component 5.

[0048] Before performing hardness testing on the test product, align the side to be tested with the grinding disc 83 and grind it to keep the surface to be tested flat, making it easier to perform hardness testing.

[0049] The circuits and controls involved in this invention are all existing technologies, and will not be described in detail here.

[0050] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A sampling and testing device for platinum smelting, characterized in that, include: Mounting plate; Support assembly, which is mounted on a mounting plate; A detection component, which is mounted on a mounting plate; A splash-proof assembly, which is mounted on the detection assembly; A collection component, which is mounted on a support component; A connecting component, which is mounted on the splash-proof component; The support assembly includes a support plate, support columns, pads, cylinders, and piston rods. The support plate is installed below the mounting plate, and two sets of support columns are symmetrically fixedly installed at the lower end of the support plate. Two sets of pads are symmetrically fixedly installed at the bottom of the two sets of support columns. Two sets of cylinders are symmetrically fixedly installed on the support plate, and two sets of piston rods are respectively fixedly installed on the output ends of the two sets of cylinders. The tops of the two sets of piston rods are fixedly connected to the bottom of the mounting plate. The detection assembly includes an annular groove, a support base, a fixing rod, a U-shaped plate, a hydraulic cylinder, a hydraulic rod, and a hardness detector. The annular groove is formed on the mounting plate, and the support base is fixedly installed in the annular groove by the fixing rod. The U-shaped plate is fixedly installed on the mounting plate by fixing bolts with its notch facing the support assembly. The hydraulic cylinder is vertically fixedly installed on the U-shaped plate, and the hydraulic rod is fixedly installed on the output end of the hydraulic cylinder. The hardness detector is fixedly installed on the lower end of the hydraulic rod and located directly above the support base. The anti-splash assembly includes an annular screen, an air pump, an air supply pipe, an air intake pipe, an annular mounting groove, and high-pressure nozzles. The annular screen is mounted on a U-shaped plate, and the annular mounting groove is opened in the annular screen with its opening facing downwards. Multiple high-pressure nozzles are arranged in a ring around the annular mounting groove. The air pump is mounted on the bottom of the support plate, and one end of the air intake pipe and the air supply pipe are respectively installed at the air pump's inlet and outlet. The other end of the air supply pipe is mounted on the annular screen and connected to the multiple high-pressure nozzles. The collection assembly includes a collection bucket, an annular limiting block, a filter screen, and an arc-shaped positioning block. The arc-shaped positioning block is fixedly installed on the support plate, and the collection bucket is located on the support plate, abutting against the arc-shaped positioning block and directly below the annular groove. The upper opening of the collection bucket abuts against the lower side wall of the mounting plate and surrounds the annular groove. The annular limiting block is fixedly installed inside the collection bucket and near its lower end. The filter screen is located inside the collection bucket and abuts against the upper side wall of the annular limiting block. The connecting assembly includes an installation port, a connector, a first fixing ring, a second fixing ring, a spring, and a connecting port. The installation port is vertically opened in the support plate, and the connector is located in the installation port and communicates with the suction pipe. The first fixing ring is fixedly installed on the inner wall of the installation port, and the second fixing ring is fixedly sleeved on the connector. The first fixing ring and the second fixing ring are elastically connected by a spring. The connecting port is vertically opened at the bottom of the collection bucket, and the connector is inserted into the connecting port. The upper end of the connector extends a short distance above the installation port, and an annular guide groove is provided on the outer wall of the connector. An adsorption assembly is installed on the support base. The adsorption assembly includes an adsorption port, an insert tube, and a connecting tube. The adsorption port is vertically opened in the support base, and the insert tube is vertically fixedly installed at the bottom of the support base and communicates with the adsorption port. The connecting tube is vertically installed on the filter screen, and the bottom of the connecting tube penetrates the filter screen and is located directly above the connecting port. The bottom of the insert tube is inserted into the opening at the upper end of the connecting tube.

2. The sampling and testing device for platinum smelting according to claim 1, characterized in that, A grinding assembly is mounted on the mounting plate. The grinding assembly includes a motor, a rotating shaft, a grinding disc, a protective cover, and a slide rail. The motor is fixedly mounted on the bottom of the mounting plate and located near its end. The rotating shaft is vertically fixedly mounted on the output end of the motor. The grinding disc is mounted on the mounting plate and fixedly connected to the upper end of the rotating shaft. The slide rail is horizontally mounted on the mounting plate, and the protective cover covers the grinding disc and is mounted on the slide rail and slidably connected to it.

3. The sampling and testing device for platinum smelting according to claim 2, characterized in that, Two electric telescopic rods are fixedly installed on the U-shaped plate, and the annular curtain plate is fixedly installed on the output end of the two electric telescopic rods. The multiple high-pressure nozzles installed in the annular mounting groove are arranged in a conical shape.

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