A high-efficiency cleaning device and method for sampling cone and skimmer of inductively coupled plasma mass spectrometer

Abstract

The application discloses a kind of efficient cleaning equipment of sampling cone and intercepting cone for inductively coupled plasma mass spectrometer, including servo motor and mounting piece, telescopic cylinder and pressing piece, drive motor, screw rod, sliding table and polishing cylinder body, in addition, the application also discloses efficient cleaning method of sampling cone and intercepting cone for inductively coupled plasma mass spectrometer, respectively rough cleaning and fine cleaning are fixed and carried out to the concave-convex surface of sampling cone and intercepting cone.The application is fixed and installed by setting servo motor and cooperating with mounting piece, and rotates, the pressing of sampling cone or intercepting cone is realized by setting telescopic cylinder and cooperating with pressing piece, so as to realize efficient cleaning, by setting drive motor and cooperating with installation polishing cylinder body, prevent the leakage of cleaning medium on sampling cone or intercepting cone, ensure the effect of efficient cleaning, simple and efficient, reduce the damage of cleaning mode to cone body, prolong the service life of sampling cone or intercepting cone.

Description

Technical Field

[0001] This invention belongs to the field of instrument analysis device maintenance technology, specifically relating to an efficient cleaning device and method for the sampling cone and snipping cone of an inductively coupled plasma mass spectrometer. Background Technology

[0002] Inductively coupled plasma mass spectrometry (ICP-MS) has advantages such as high sensitivity, low inter-element interference, good precision, and simple operation. In recent years, it has been widely used in trace element detection in industries such as environmental geology and non-ferrous metals both domestically and internationally.

[0003] In inductively coupled plasma mass spectrometry (ICP-MS), the sampling cone and the cutoff cone are the core components of the device. Their structure consists of two coaxial cones fixed to a base, with a 2mm cone aperture at the front. The structure is complex, and the surface is nearly mirror-like. The sampling and cutoff cones are typically made of nickel-based alloys or platinum alloys, making them expensive. A set of nickel cones (usually 2-3 cones used together) costs around 10,000 RMB, while a set of platinum cones costs as much as 30,000 to 40,000 RMB. During instrument operation, metal ions, metal oxides, carbides, etc., generated during detection are contained within the high-temperature ICP-MS plasma. As they pass through the detection channel (cone aperture), they accumulate on the surface of the sampling and cutoff cones, especially near the aperture. If not cleaned promptly, this will severely affect the detection performance. Therefore, depending on the degree of contamination, the sampling and cutoff cones need to be cleaned periodically to remove contaminants adhering to their surfaces, ensuring accurate and reliable detection results.

[0004] Currently, there are two methods for cleaning sampling cones and retrieval cones. The first is a chemical method, which uses solvents to dissolve contaminants deposited on the surface of the metal cone. This typically involves immersing the cone in dilute nitric acid, ultrasonically cleaning the entire cone, or holding the edge of the cone and wiping the tip with a cotton swab dipped in a small amount of acid and cleaning agent. However, sampling and retrieval cones are usually made of nickel-based alloys or platinum alloys, and corrosive solutions like nitric acid can corrode the surface, especially the tip. Due to the tip effect, the tip is easily corroded, leading to enlargement and deformation of the cone, ultimately rendering the cone unusable. The second method is a physical method to remove contaminants. This involves manual polishing with sandpaper and polishing compound. However, it's difficult to control the polishing pressure, easily damaging and deforming the cone tip, significantly reducing its lifespan.

[0005] Therefore, there is a need for an efficient cleaning device and method for the sampling cone and snipping cone used in inductively coupled plasma mass spectrometry. Summary of the Invention

[0006] The technical problem this invention aims to solve is to address the shortcomings of the prior art by providing a highly efficient cleaning device for the sampling cone and snipping cone of an inductively coupled plasma mass spectrometer. This device achieves fixed installation and rotation of the sampling cone or snipping cone by using a servo motor and mounting components, and achieves efficient cleaning by using a telescopic cylinder and clamping components to press the sampling cone or snipping cone into place. Furthermore, the device prevents leakage of cleaning medium from the sampling cone or snipping cone by using a drive motor and a polishing cylinder, ensuring efficient cleaning. This simple and efficient device reduces damage to the cone during cleaning and extends the service life of the sampling cone or snipping cone.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a high-efficiency cleaning device for sampling cones and snipping cones for inductively coupled plasma mass spectrometers, characterized in that the cleaning device includes a body, a servo motor is provided on the body, a mounting component for mounting the sampling cone or snipping cone is fixed on the output shaft of the servo motor, a telescopic cylinder is also provided on the body, a clamping component that cooperates with the mounting component to press the sampling cone or snipping cone is fixed on the output shaft of the telescopic cylinder, an installation groove is provided between the servo motor and the telescopic cylinder on the body, a drive motor is built into one side of the installation groove, the drive motor is connected to lead screws pointing to the servo motor and the telescopic cylinder respectively through a coupling, a slide is provided on the lead screw, and a polishing cylinder with an inner diameter that cooperates with the mounting component and the clamping component is provided on the slide.

[0008] The above-mentioned high-efficiency cleaning device for the sampling cone and the snipping cone of an inductively coupled plasma mass spectrometer is characterized in that the mounting component is connected to the sampling cone or the snipping cone by a pin.

[0009] The above-mentioned high-efficiency cleaning device for sampling cones and snipping cones for inductively coupled plasma mass spectrometers is characterized in that the mounting component includes a convex mounting component and a concave mounting component. The convex mounting component includes a first flange fixed to the output shaft of a servo motor. A rubber cone that mates with the concave surface of the sampling cone or snipping cone is bolted onto the first flange. The concave mounting component includes a second flange fixed to the output shaft of the servo motor. A groove that mates with the convex surface of the sampling cone or snipping cone is provided on the second flange. A rubber ring is bolted onto the outside of the groove.

[0010] The above-mentioned high-efficiency cleaning device for sampling cones and snipping cones in an inductively coupled plasma mass spectrometer is characterized in that the clamping component includes a concave clamping component and a convex clamping component. The concave clamping component includes a third flange fixed to the output shaft of a telescopic cylinder. A concave clamping body that mates with the convex surface of the sampling cone or snipping cone is bolted onto the third flange. The convex clamping component includes a fourth flange fixed to the output shaft of the telescopic cylinder. A convex clamping body that mates with the concave surface of the sampling cone or snipping cone is bolted onto the fourth flange.

[0011] The above-mentioned high-efficiency cleaning device for the sampling cone and the snipping cone of an inductively coupled plasma mass spectrometer is characterized in that both the convex and concave clamping bodies are provided with sealing rings that cooperate with the polishing cylinder.

[0012] The above-mentioned high-efficiency cleaning device for the sampling cone and the snipping cone of an inductively coupled plasma mass spectrometer is characterized in that the lead screw is provided with slide rods that cooperate with the slide table on both sides.

[0013] The above-mentioned high-efficiency cleaning device for the sampling cone and the snipping cone of an inductively coupled plasma mass spectrometer is characterized in that limit switches are provided at both ends of the lead screw.

[0014] In addition, the present invention provides an efficient cleaning method for the sampling cone and the snipping cone of an inductively coupled plasma mass spectrometer, characterized in that the method includes the following steps:

[0015] Step 1: Retract the telescopic cylinder and move the polishing cylinder to the right. Then, fix the first flange on the output shaft of the servo motor and install the rubber cone and sampling cone on the first flange. After that, fix the third flange on the output shaft of the telescopic cylinder and install the concave clamping body on the third flange to obtain the convex surface assembly equipment.

[0016] Step 2: Apply coarse cleaning medium to the concave clamping body of the convex assembly equipment obtained in Step 1, then move the polishing cylinder to the left and stretch the telescopic cylinder so that the polishing cylinder is fitted onto the first flange and the concave clamping body presses against the sampling cone to obtain the convex equipment to be cleaned.

[0017] Step 3: Start the servo motor of the convex surface device to be cleaned obtained in Step 2, so that the first flange drives the sampling cone to rotate, thereby performing rough cleaning on the convex surface of the sampling cone, and obtaining a sampling cone with rough cleaning of the convex surface and the device after rough cleaning of the convex surface.

[0018] Step 4: Repeat steps 2 and 3 and perform fine cleaning with a fine cleaning medium to obtain a finely cleaned convex sampling cone and a finely cleaned convex device.

[0019] Step 5: After cleaning the convex surface in Step 4, retract the telescopic cylinder in the equipment and move the polishing cylinder to the right. Then, remove the first flange and the third flange. Next, fix the second flange on the output shaft of the servo motor and fix the fourth flange on the output shaft of the telescopic cylinder. Install the convex clamping body on the fourth flange to obtain the concave surface assembly equipment.

[0020] Step 6: Apply coarse cleaning medium to the convex clamping body of the concave assembly equipment obtained in Step 5, then move the polishing cylinder to the left and stretch the telescopic cylinder so that the polishing cylinder is fitted onto the third flange and the convex clamping body presses against the sampling cone to obtain the concave equipment to be cleaned.

[0021] Step 7: Start the servo motor of the concave surface device to be cleaned obtained in Step 6, so that the third flange drives the sampling cone to rotate, thereby performing rough cleaning on the concave surface of the sampling cone, and obtaining a sampling cone with rough cleaning on the concave surface and the device after rough cleaning on the concave surface.

[0022] Step 8: Repeat steps 6 and 7 and perform fine cleaning using a fine cleaning medium to obtain a highly clean sampling cone;

[0023] Step 9: Repeat steps 1 to 8 on the cutting cone to obtain a highly efficient and clean cutting cone.

[0024] This invention achieves efficient cleaning by sequentially performing coarse and fine cleaning on the convex and concave surfaces of the sampling cone and the cutting cone, thereby reducing damage to the cones caused by the cleaning method and extending the service life of the sampling cone or the cutting cone.

[0025] The above method is characterized in that the coarse cleaning medium in steps two and six is ​​a sponge sheet and 800-mesh white corundum abrasive paste; and the fine cleaning medium in steps four and eight is shredded cotton and 1000-mesh white corundum abrasive paste. This invention ensures the effectiveness of coarse cleaning by using a sponge sheet that adheres to the sampling cone (3) or the cutting cone (4) and 800-mesh white corundum abrasive paste together as the coarse cleaning medium, and ensures the effectiveness of fine cleaning by using a mixture of shredded cotton and 1000-mesh white corundum abrasive paste as the fine cleaning medium.

[0026] The above method is characterized in that, in the coarse cleaning steps three and seven, the output shaft of the servo motor rotates at a speed of 80 r / min to 100 r / min, continuously in the same direction for 1 minute, then in the opposite direction for 1 minute, and alternating rotations for 10 to 20 minutes; in the fine cleaning steps four and eight, the output shaft of the servo motor rotates at a speed of 80 r / min to 100 r / min, continuously in the same direction for 1 minute, then in the opposite direction for 1 minute, and alternating rotations for 10 to 20 minutes. This invention ensures optimal and efficient cleaning results by controlling the parameters of coarse and fine cleaning.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1. This invention achieves fixed installation and rotation of the sampling cone or snipping cone by setting a servo motor and cooperating with mounting components, and achieves high-efficiency cleaning by setting a telescopic cylinder and cooperating with clamping components to clamp the sampling cone or snipping cone. By setting a drive motor and cooperating with the installation of a polishing cylinder, leakage of cleaning medium on the sampling cone or snipping cone is prevented, ensuring high-efficiency cleaning effect. It is simple and efficient, reduces damage to the cone by the cleaning method, and extends the service life of the sampling cone or snipping cone.

[0029] 2. The present invention uses a convex mounting part and a concave clamping part to clean the convex surface of the sampling cone or cutting cone, and a concave mounting part and a convex clamping part to clean the concave surface of the sampling cone or cutting cone, thereby achieving efficient cleaning of both sides of the sampling cone or cutting cone.

[0030] 3. The coarse cleaning medium of this invention uses a sponge sheet and 800-mesh white corundum abrasive paste, while the fine cleaning medium uses shredded cotton and 1000-mesh white corundum abrasive paste. This not only achieves efficient removal of contaminants but also effectively ensures the protection of the sampling cone or cutting cone surface. Furthermore, it has the function of repairing deformed or damaged parts of the cone, significantly improving the service life of existing cones and the detection accuracy of equipment.

[0031] 4. The present invention designs a convex mounting part and a concave clamping part with the same contour shape as the sampling cone or snipping cone, and optimizes the optimal working conditions to achieve efficient removal of deposits, especially those in the cone hole, from the sampling cone or snipping cone.

[0032] 5. After cleaning, the sampling cone or cutting cone has a bright and clean surface, and the edge of the cone hole is smooth and burr-free. Instrument testing shows that there are no residual metal ion contaminants. The roughness of the inner and outer surfaces of the sampling cone or cutting cone is Ra0.02 and Ra0.01 mm, respectively, thereby achieving automatic and efficient removal of residual oxides and carbides from the sampling cone or cutting cone, especially the cone hole.

[0033] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the efficient cleaning device for the sampling cone and snipping cone of the inductively coupled plasma mass spectrometer of the present invention.

[0035] Figure 2 This is a schematic diagram showing the positional relationship between the body of the invention, the drive motor, and the lead screw.

[0036] Figure 3 This is a schematic diagram showing the connection relationship between the first flange, the sampling cone, and the third flange when the sampling cone convex surface is cleaned efficiently according to the present invention.

[0037] Figure 4 This is a schematic diagram showing the connection relationship between the second flange, the sampling cone, and the fourth flange when the sampling cone concave surface is cleaned efficiently according to the present invention.

[0038] Figure 5 This is a schematic diagram showing the connection relationship between the cutting cone and the first flange when the cutting cone convex surface is cleaned efficiently according to the present invention.

[0039] Figure 6 This is a physical image of the sampling cone and the cutting cone to be cleaned in Embodiment 1 of the present invention.

[0040] Figure 7 This is a physical image of the sampling cone and the cutting cone after efficient cleaning in Embodiment 1 of the present invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1—Main body; 2—Servo motor; 3—Sampling cone;

[0043] 4—Cutting cone; 5—Telescopic cylinder; 6—Mounting slot;

[0044] 7—Drive motor; 8—Coupling; 9—Lead screw;

[0045] 10—Slide table; 11—Polishing cylinder; 12—Pin;

[0046] 13—First flange; 14—Rubber cone; 15—Second flange;

[0047] 16—Groove; 17—Rubber ring; 18—Third flange;

[0048] 19—Concave clamping body; 20—Fourth flange; 21—convex clamping body;

[0049] 22—Sealing ring; 23—Slide rod; 24—Limit switch. Detailed Implementation

[0050] The present invention provides a highly efficient cleaning device for the sampling cone and the snipping cone of an inductively coupled plasma mass spectrometer, which is described in detail through Example 1.

[0051] Example 1

[0052] like Figure 1 and Figure 2 As shown, the high-efficiency cleaning device for the sampling cone 3 and the severing cone 4 of the inductively coupled plasma mass spectrometer in this embodiment includes a body 1. A servo motor 2 is provided on the body 1. A mounting component for mounting the sampling cone 3 or the severing cone 4 is fixed on the output shaft of the servo motor 2. A telescopic cylinder 5 is also provided on the body 1. A clamping component that cooperates with the mounting component to press the sampling cone 3 or the severing cone 4 is fixed on the output shaft of the telescopic cylinder 5. An installation groove 6 is provided between the servo motor 2 and the telescopic cylinder 5 on the body 1. A drive motor 7 is built into one side of the installation groove 6. The drive motor 7 is connected to a lead screw 9 pointing to the servo motor 2 and the telescopic cylinder 5 respectively through a coupling 8. A slide 10 is provided on the lead screw 9. A polishing cylinder 11 with an inner diameter that cooperates with the mounting component and the clamping component is provided on the slide 10.

[0053] It should be noted that the main body 1 facilitates the installation of the servo motor 2, the telescopic cylinder 5, and the drive motor 7. The servo motor 2, in conjunction with the mounting components, enables the fixed installation and rotation of the sampling cone 3 or the cutting cone 4. The telescopic cylinder 5, in conjunction with the clamping components, enables the clamping of the sampling cone 3 or the cutting cone 4, thereby achieving efficient cleaning. The drive motor 7, in conjunction with the installation of the polishing cylinder 11, prevents the cleaning medium on the sampling cone 3 or the cutting cone 4 from leaking out, ensuring the effect of efficient cleaning.

[0054] It should be noted that by opening the mounting slot 6 and installing the drive motor 7 inside, the drive motor 7 and the servo motor 2 are prevented from interfering with each other, and positions are provided for the installation of the coupling 8, lead screw 9 and slide table 10. The polishing cylinder 11 can be moved left and right by setting the servo motor 2, coupling 8, lead screw 9 and slide table 10. Before cleaning, the polishing cylinder 11 is moved to the right to facilitate the installation of other components, and it is moved to the left during cleaning to prevent the cleaning medium from leaking out.

[0055] like Figures 3-5 As shown, in this embodiment, the mounting component is connected to the sampling cone 3 or the cutting cone 4 by a pin 12.

[0056] It should be noted that the sampling cone 3 or the cutting cone 4 has a pin hole. The sampling cone 3 or the cutting cone 4 is fixed by using the pin 12 and the existing pin hole. The operation is convenient and does not damage the sampling cone 3 or the cutting cone 4. It also ensures that the surface of the sampling cone 3 or the cutting cone 4 is completely and efficiently cleaned, thus ensuring the effect of efficient cleaning.

[0057] like Figures 3-5 As shown, in this embodiment, the mounting component includes a convex mounting component and a concave mounting component. The convex mounting component includes a first flange 13 fixed to the output shaft of the servo motor 2. A rubber cone 14 that mates with the concave surface of the sampling cone 3 or the cutting cone 4 is mounted on the first flange 13 by bolts. The concave mounting component includes a second flange 15 fixed to the output shaft of the servo motor 2. A groove 16 that mates with the convex surface of the sampling cone 3 or the cutting cone 4 is provided on the second flange 15. A rubber ring 17 is mounted on the outside of the groove 16 by bolts. By setting convex and concave mounting parts, the sampling cone 3 or the cutting cone 4 is fixed respectively, and the concave and convex surfaces of the sampling cone 3 or the cutting cone 4 are cleaned with their concave and convex surfaces facing outwards respectively; the first flange 13 is set to facilitate fixing with the output shaft of the servo motor 2, and at the same time facilitates the installation of the rubber cone 14. The rubber cone 14 is set to support the concave surface of the sampling cone 3 or the cutting cone 4 and play a buffering role to prevent crushing. The second flange 15 is set to facilitate fixing with the output shaft of the servo motor 2. The groove 16 is opened to accommodate the convex surface of the sampling cone 3 or the cutting cone 4. The rubber ring 17 is set to play a buffering role to prevent crushing.

[0058] like Figure 3 and Figure 4 As shown, in this embodiment, the clamping component includes a concave clamping component and a convex clamping component. The concave clamping component includes a third flange 18 fixed to the output shaft of the telescopic cylinder 5. A concave clamping body 19 that mates with the convex surface of the sampling cone 3 or the cutting cone 4 is bolted onto the third flange 18. The convex clamping component includes a fourth flange 20 fixed to the output shaft of the telescopic cylinder 5. A convex clamping body 21 that mates with the concave surface of the sampling cone 3 or the cutting cone 4 is bolted onto the fourth flange 20. By setting concave and convex clamping parts, the sampling cone 3 or the cutting cone 4 is clamped respectively, and the concave and convex surfaces of the sampling cone 3 or the cutting cone 4 are respectively faced, and cleaning is achieved after applying the cleaning medium; by setting a third flange 18, it is easy to fix with the output shaft of the telescopic cylinder 5; by setting a concave clamping body 19, it is able to cooperate and fit with the convex surface of the sampling cone 3 or the cutting cone 4 to achieve efficient cleaning; by setting a fourth flange 20, it is easy to fix with the output shaft of the telescopic cylinder 5; by setting a convex clamping body 21, it is able to cooperate and fit with the concave surface of the sampling cone 3 or the cutting cone 4 to achieve cleaning after applying the cleaning medium.

[0059] It should be noted that the convex mounting part and the concave clamping part are used together to clean the convex surface of the sampling cone 3 or the cutting cone 4, and the concave mounting part and the convex clamping part are used together to clean the concave surface of the sampling cone 3 or the cutting cone 4, so as to achieve efficient cleaning of both sides of the sampling cone 3 or the cutting cone 4.

[0060] It should be noted that, except for the cone angles of the rubber cone 14, the concave clamping body 19, the second flange 15, and the convex clamping body 21, the mounting and clamping parts of the sampling cone 3 and the cutting cone 4 are all interchangeable.

[0061] like Figure 3 and Figure 4 As shown, in this embodiment, both the convex clamping body 21 and the concave clamping body 19 are provided with sealing rings 22 that mate with the polishing cylinder body 11. By providing sealing rings 22, leakage of cleaning medium is prevented, thereby improving the cleaning effect.

[0062] like Figure 2 As shown, in this embodiment, slide rods 23 that cooperate with the slide table 10 are provided on both sides of the lead screw 9. By providing slide rods 23, the stability of the slide table 10 movement is improved.

[0063] like Figure 2 As shown, in this embodiment, limit switches 24 are provided at both ends of the lead screw 9. The limit switches 24 are used to prevent the slide table 10 from moving beyond its limit.

[0064] The method of using a high-efficiency cleaning device for a sampling cone and a snipping cone for an inductively coupled plasma mass spectrometer according to the present invention is described in detail through Examples 2 to 4.

[0065] Example 2

[0066] This embodiment includes the following steps:

[0067] Step 1: Retract the telescopic cylinder 5 and move the polishing cylinder 11 to the right. Then, fix the first flange 13 on the output shaft of the servo motor 2, and install the rubber cone 14 and sampling cone 3 on the first flange 13. After that, fix the third flange 18 on the output shaft of the telescopic cylinder 5, and install the concave clamping body 19 on the third flange 18 to obtain the convex surface assembly equipment.

[0068] Step 2: Apply a coarse cleaning medium to the concave clamping body 19 of the convex assembly device obtained in Step 1, then move the polishing cylinder 11 to the left and stretch the telescopic cylinder 5 so that the polishing cylinder 11 is fitted onto the first flange 13 and the concave clamping body 19 presses against the sampling cone 3 to obtain the convex device to be cleaned; the coarse cleaning medium is a sponge sheet and 800-mesh white corundum abrasive paste.

[0069] Step 3: Start the servo motor 2 of the convex surface device to be cleaned obtained in Step 2, so that the first flange 13 drives the sampling cone 3 to rotate, thereby performing rough cleaning on the convex surface of the sampling cone 3, and obtaining a sampling cone with rough cleaning of the convex surface and the device after rough cleaning of the convex surface; the rotation speed of the output shaft of the servo motor 2 during the rough cleaning is 80r / min to 100r / min, and it rotates in the same direction for 1 minute, then in the opposite direction for 1 minute, and then alternately rotates for 15 minutes;

[0070] Step 4: Repeat steps 2 and 3 and perform fine cleaning using a fine cleaning medium to obtain a finely cleaned convex sampling cone 3 and a finely cleaned convex device; the fine cleaning medium consists of shredded cotton and 1000-mesh white corundum abrasive paste; during the coarse cleaning, the output shaft of the servo motor 2 rotates at a speed of 80 r / min to 100 r / min, rotating in the same direction for 1 minute, then in the opposite direction for 1 minute, and alternating for 15 minutes.

[0071] Step 5: After cleaning the convex surface in Step 4, retract the telescopic cylinder 5 in the equipment and move the polishing cylinder 11 to the right. Then, remove the first flange 13 and the third flange 18. After that, fix the second flange 15 on the output shaft of the servo motor 2 and fix the fourth flange 20 on the output shaft of the telescopic cylinder 5. Install the convex clamping body 21 on the fourth flange 20 to obtain the concave surface assembly equipment.

[0072] Step 6: Apply a coarse cleaning medium to the convex clamping body 21 of the concave assembly equipment obtained in Step 5, then move the polishing cylinder 11 to the left and stretch the telescopic cylinder 5 so that the polishing cylinder 11 is fitted onto the third flange 18 and the convex clamping body 21 presses against the sampling cone 3 to obtain the concave equipment to be cleaned; the coarse cleaning medium is a sponge sheet and 800-mesh white corundum abrasive paste.

[0073] Step 7: Start the servo motor 2 of the concave surface device to be cleaned obtained in Step 6, so that the third flange 18 drives the sampling cone 3 to rotate, thereby performing coarse cleaning on the concave surface of the sampling cone 3, and obtaining a sampling cone with coarse cleaning of the concave surface and the device after coarse cleaning of the concave surface; during the coarse cleaning, the output shaft speed of the servo motor 2 is 80r / min to 100r / min, and it rotates in the same direction for 1 minute, then in the opposite direction for 1 minute, and then alternately rotates for 15 minutes;

[0074] Step 8: Repeat steps 6 and 7 and perform fine cleaning using a fine cleaning medium to obtain a highly efficient clean sampling cone; the fine cleaning medium consists of shredded cotton and 1000-mesh white corundum abrasive paste; during the coarse cleaning, the output shaft of the servo motor 2 rotates at a speed of 80 r / min to 100 r / min, rotating in the same direction for 1 minute, then in the opposite direction for 1 minute, and alternating for 15 minutes.

[0075] Step 9: Repeat steps 1 to 8 on the cutting cone 4 to obtain a highly efficient and clean cutting cone.

[0076] Upon inspection, it was found that before cleaning, the metal ions, oxides, and carbides in the sampling cone 3 or the cutting cone 4 in this embodiment adhered and accumulated on the cone body, especially on the cone orifice, with a roughness Ra of 0.05 mm. Figure 6 The sampling cone 3 or the cutting cone 4 is highly efficient and clean. The cone surface is bright and clean, and the edge of the cone hole is smooth and burr-free. Instrument testing shows that there are no metal ion contaminants remaining. The roughness of the inner and outer surfaces of the cone is Ra0.02 and Ra0.01 mm, respectively, thereby achieving automatic and efficient removal of residual oxides and carbides from the cone, especially the cone hole.

[0077] Example 3

[0078] The difference between this embodiment and embodiment 2 is that: in step 3, the rotation is alternately rotated for 10 minutes; in step 4, the rotation is alternately rotated for 20 minutes; in step 7, the rotation is alternately rotated for 20 minutes; and in step 8, the rotation is alternately rotated for 10 minutes.

[0079] Example 4

[0080] The difference between this embodiment and embodiment 2 is that: in step 3, the rotation alternates for 20 minutes; in step 4, the rotation alternates for 10 minutes; in step 7, the rotation alternates for 10 minutes; and in step 8, the rotation alternates for 20 minutes.

[0081] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any way. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A high-efficiency cleaning device for the sampling cone and snipping cone of an inductively coupled plasma mass spectrometer, characterized in that, The cleaning equipment includes a body (1), on which a servo motor (2) is mounted. A mounting component for mounting a sampling cone (3) or a cutting cone (4) is fixed on the output shaft of the servo motor (2). A telescopic cylinder (5) is also mounted on the body (1). A clamping component that cooperates with the mounting component to press the sampling cone (3) or the cutting cone (4) is fixed on the output shaft of the telescopic cylinder (5). An installation opening is provided between the servo motor (2) and the telescopic cylinder (5) on the body (1). The mounting groove (6) has a drive motor (7) built into one side. The drive motor (7) is connected to a lead screw (9) pointing to the servo motor (2) and the telescopic cylinder (5) respectively via a coupling (8). A slide (10) is provided on the lead screw (9). A polishing cylinder (11) with an inner diameter that matches the mounting part and the clamping part is provided on the slide (10). The mounting part includes a convex mounting part and a concave mounting part. The convex mounting part includes a first flange (13) fixed to the output shaft of the servo motor (2). A rubber cone (14) that matches the concave surface of the sampling cone (3) or the cutting cone (4) is installed on the first flange (13) by bolts. The concave mounting part includes a second flange (15) fixed to the output shaft of the servo motor (2). A groove (16) that matches the convex surface of the sampling cone (3) or the cutting cone (4) is opened on the second flange (15). A rubber ring (17) is installed on the outside of the groove (16) by bolts. The clamping part includes a concave clamping part. The device includes a third flange (18) fixed to the output shaft of the telescopic cylinder (5), and a concave clamping body (19) that mates with the convex surface of the sampling cone (3) or the cutting cone (4) is bolted to the third flange (18). The device also includes a fourth flange (20) fixed to the output shaft of the telescopic cylinder (5), and a convex clamping body (21) that mates with the concave surface of the sampling cone (3) or the cutting cone (4) is bolted to the fourth flange (20).

2. The high-efficiency cleaning device for the sampling cone and snipping cone of an inductively coupled plasma mass spectrometer according to claim 1, characterized in that, The mounting component is connected to the sampling cone (3) or the cutting cone (4) by a pin (12).

3. The high-efficiency cleaning device for the sampling cone and snipping cone of an inductively coupled plasma mass spectrometer according to claim 1, characterized in that, Both the convex clamping body (21) and the concave clamping body (19) are provided with sealing rings (22) that cooperate with the polishing cylinder body (11).

4. The high-efficiency cleaning device for the sampling cone and snipping cone of an inductively coupled plasma mass spectrometer according to claim 1, characterized in that, The lead screw (9) is provided with slide rods (23) on both sides that cooperate with the slide table (10).

5. The high-efficiency cleaning device for the sampling cone and snipping cone of an inductively coupled plasma mass spectrometer according to claim 1, characterized in that, Limit switches (24) are provided at both ends of the lead screw (9).

6. A method for efficiently cleaning the sampling cone and truncation cone of an inductively coupled plasma mass spectrometer as described in any one of claims 1 to 5, characterized in that, The method includes the following steps: Step 1: Retract the telescopic cylinder (5) and move the polishing cylinder (11) to the right. Then, fix the first flange (13) on the output shaft of the servo motor (2), and install the rubber cone (14) and sampling cone (3) on the first flange (13). After that, fix the third flange (18) on the output shaft of the telescopic cylinder (5), and install the concave clamping body (19) on the third flange (18) to obtain the convex surface assembly equipment. Step 2: Apply coarse cleaning medium to the concave clamping body (19) of the convex assembly equipment obtained in Step 1, then move the polishing cylinder (11) to the left and stretch the telescopic cylinder (5) so that the polishing cylinder (11) is fitted onto the first flange (13) and the concave clamping body (19) presses the sampling cone (3) to obtain the convex equipment to be cleaned. Step 3: Start the servo motor (2) of the convex surface device to be cleaned obtained in Step 2, so that the first flange (13) drives the sampling cone (3) to rotate, thereby performing rough cleaning on the convex surface of the sampling cone (3), and obtaining the sampling cone with rough cleaning on the convex surface and the device after rough cleaning on the convex surface. Step 4: Repeat steps 2 and 3 and perform fine cleaning with a fine cleaning medium to obtain a finely cleaned sampling cone (3) and a finely cleaned device. Step 5: After cleaning the convex surface in Step 4, retract the telescopic cylinder (5) in the equipment and move the polishing cylinder (11) to the right. Then, remove the first flange (13) and the third flange (18). After that, fix the second flange (15) on the output shaft of the servo motor (2), fix the fourth flange (20) on the output shaft of the telescopic cylinder (5), and install the convex clamping body (21) on the fourth flange (20) to obtain the concave surface assembly equipment. Step 6: Apply coarse cleaning medium to the convex clamping body (21) of the concave assembly equipment obtained in Step 5, then move the polishing cylinder (11) to the left and stretch the telescopic cylinder (5) so that the polishing cylinder (11) is fitted onto the third flange (18) and the convex clamping body (21) presses against the sampling cone (3) to obtain the concave equipment to be cleaned; Step 7: Start the servo motor (2) of the device to be cleaned obtained in Step 6, so that the third flange (18) drives the sampling cone (3) to rotate, thereby performing rough cleaning on the concave surface of the sampling cone (3), and obtaining the sampling cone with rough cleaning of the concave surface and the device after rough cleaning of the concave surface. Step 8: Repeat steps 6 and 7 and perform fine cleaning using a fine cleaning medium to obtain a highly clean sampling cone; Step 9: Repeat steps 1 to 8 on the cutting cone (4) to obtain a highly efficient and clean cutting cone.

7. The method according to claim 6, characterized in that, The coarse cleaning medium in steps two and six is ​​a sponge sheet and 800-mesh white corundum abrasive paste; the fine cleaning medium in steps four and eight is shredded cotton and 1000-mesh white corundum abrasive paste.

8. The method according to claim 6, characterized in that, In the coarse cleaning process described in steps three and seven, the output shaft of the servo motor (2) rotates at a speed of 80 r / min to 100 r / min, continuously in the same direction for 1 minute, then in the opposite direction for 1 minute, and alternately rotates for 10 to 20 minutes. In the fine cleaning process described in steps four and eight, the output shaft of the servo motor (2) rotates at a speed of 80 r / min to 100 r / min, continuously in the same direction for 1 minute, then in the opposite direction for 1 minute, and alternately rotates for 10 to 20 minutes.

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