Solid-phase sylvite online analysis device based on neutron activation method

Abstract

The invention discloses a solid-phase sylvite online analysis device based on a neutron activation method. The solid-phase sylvite online analysis device comprises a shell, a cover plate is arranged above the shell, a feeding structure is arranged above the cover plate, and a rotary scanning platform is fixedly connected to the bottom of the inner wall of the shell. By rotating the scanning platform, the sample can be automatically rotated and accurately positioned and adjusted in the neutron beam irradiation process, so that the neutron beam can be uniformly irradiated to the surface of the sample from multiple angles and directions, and the intensity and uniformity of each irradiation area are strictly controlled; and the phenomenon of over-strong or over-weak irradiation of a local area is avoided, so that the neutron excitation process of the whole sample is consistent and uniform. According to the method, the analysis accuracy is improved, errors possibly caused by uneven irradiation are eliminated, and the measurement result is more reliable.

Description

Technical Field

[0001] The present invention belongs to the field of potassium salt analysis, and more specifically, relates to an on-line analysis device for solid potassium salts based on neutron activation method. Background Art

[0002] Although traditional laboratory analysis methods have obvious advantages in terms of accuracy, their analysis processes are usually rather cumbersome and time-consuming. First of all, these methods generally require multiple steps such as sample collection, transportation, pretreatment, and analysis. Each step requires manual intervention, and the completion of each step may take a relatively long time. Samples must be sent to the laboratory for chemical treatment and instrumental analysis, and it often takes several hours or even days to obtain the final results. In addition, the operation of laboratory equipment is complex, the operators need to have certain professional skills, and the maintenance and calibration cycles of the equipment are long, resulting in further delays in the analysis process. Most importantly, the results of these traditional methods are often not obtained immediately, so the quality changes during the production process cannot be reflected in real time, and any abnormalities in production cannot be quickly responded to.

[0003] In the actual production environment, especially in the case of high-speed and large-volume production, traditional laboratory analysis methods often cannot meet the requirements of real-time monitoring. Quality fluctuations and process changes during the production process need to be monitored and adjusted in a timely manner, otherwise it may lead to unstable quality, waste, and production stagnation. However, due to the time delay and complexity of traditional analysis methods, production managers often cannot get feedback in the first time when problems occur, missing the best adjustment opportunity, resulting in low production efficiency and even the production of unqualified products.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an on-line analysis device for solid potassium salts based on neutron activation method, solving the problems raised in the above background art.

[0006] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is:

[0007] An on-line analysis device for solid potassium salts based on neutron activation method, comprising: a housing, a cover plate is arranged above the housing, a feeding structure is arranged above the cover plate, a rotating scanning platform is fixedly connected to the bottom of the inner wall of the housing, an irradiation area is arranged above the rotating scanning platform, a neutron activation analyzer for detecting the radioactive signal after the sample is excited and a photomultiplier tube for detecting the neutron activation signal of the sample are arranged on the peripheral side of the outer wall inner wall, and a neutron generating mechanism is arranged at the bottom of the inner wall of the cover plate.

[0008] Optionally, the feeding structure includes a feeding pipe. A notch is formed below the feeding pipe. A filtering frame is slidably connected inside the notch. The filtering frame slides above the outer shell. A connecting seat is fixedly connected to one side of the outer shell. An electric push rod is fixedly connected to one side of the connecting seat. The telescopic end of the electric push rod is connected to one side of the filtering frame.

[0009] Optionally, a filter net adapted to the inner diameter of the feeding pipe is provided in the middle of the filtering frame.

[0010] Optionally, the rotary scanning platform includes a connecting seat. A ball head seat is fixedly connected below the connecting seat. A ball head is movably connected inside the ball head seat. A support rod is fixedly connected above the ball head. A support plate is fixedly connected above the support rod. Four linear cylinders are fixedly connected below the mounting plate. The irradiation area is located above the support plate. The telescopic end of the linear cylinder contacts the connecting seat.

[0011] Optionally, a plurality of support columns are fixedly connected to the bottom of the inner wall of the outer shell. The upper parts of the support columns are rotatably connected to the support plate. A rotary cylinder is fixedly connected to the bottom of the inner wall of the outer shell. The output end of the rotary cylinder is fixedly connected to a mounting disc. A positioning rod fixedly connected to the connecting seat is fixedly connected above the mounting disc.

[0012] Optionally, through grooves for the support rod to slide out are formed on the opposite sides of the connecting seat, and the diameter of the through grooves is larger than the diameter of the support rod.

[0013] Optionally, the neutron generating mechanism includes a positioning frame slidably arranged below the inner wall of the cover plate. A neutron generator is arranged inside the positioning frame. A reflecting mirror facing the emission source of the neutron generator is arranged below the positioning frame.

[0014] Optionally, an X-axis sliding frame is arranged below the cover plate. A Z-axis sliding frame is arranged below the X-axis sliding frame. The positioning frame slides inside the Z-axis sliding frame.

[0015] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described below at the same time: <H

[0016] Through the rotary scanning platform, the sample can be automatically rotated and precisely positioned and adjusted during the neutron beam irradiation process, ensuring that the neutron beam can irradiate the surface of the sample evenly from multiple angles and directions, enabling the intensity and uniformity of each irradiation area to be strictly controlled, avoiding the phenomenon of over-strong or over-weak irradiation in local areas, and thus ensuring that the neutron excitation process of the entire sample is consistent and uniform. This not only improves the accuracy of analysis but also eliminates the errors that may be caused by uneven irradiation, making the measurement results more reliable.

[0017] The following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings. Brief Description of the Drawings

[0018] The drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the attached

[0019] drawings:

[0020] Figure 1 is a schematic three-dimensional structure diagram of the analysis device;

[0021] Figure 2 is a schematic three-dimensional structure diagram of the analysis device with the cover removed;

[0022] Figure 3 is a schematic three-dimensional structure diagram of the interior of the analysis device;

[0023] Figure 4 is one of the schematic three-dimensional structure diagrams of the rotary scanning platform;

[0024] Figure 5 is another schematic three-dimensional structure diagram of the rotary scanning platform;

[0025] Figure 6 is a schematic three-dimensional structure diagram of the neutron generating mechanism;

[0026] Figure 7 is Figure 3 a schematic diagram of the structure at position A in

[0027] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Outer shell; 2. Cover plate; 3. Irradiation area; 4. Activation analyzer; 5. Activation signal photomultiplier tube; 6. Feed pipe; 7. Notch; 8. Filter frame; 9. Electric push rod; 10. Filter screen; 11. Connecting seat; 12. Ball head seat; 13. Ball head; 14. Support rod; 15. Support plate; 16. Support column; 17. Rotary cylinder; 18. Mounting plate; 19. Positioning rod; 20. Through groove; 21. Positioning frame; 22. Reflector; 23. X-axis sliding frame; 24. Z-axis sliding frame.

[0029] It should be noted that these drawings and the text description are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Description of the Specific Embodiments

[0030] Now, the present invention will be further described in detail with reference to the attached drawings.

[0031] Please refer to Figures 1-7As shown, in this embodiment, an on-line solid-phase potassium salt analysis device based on neutron activation method is provided, which includes a housing 1. A cover plate 2 is arranged above the housing 1, and a feeding structure is arranged above the cover plate 2. A rotary scanning platform is fixedly connected to the bottom of the inner wall of the housing 1. An irradiation area 3 is arranged above the rotary scanning platform. A neutron activation analyzer 4 for detecting the radioactive signal after the sample is excited and a photomultiplier tube 5 for detecting the neutron activation signal of the sample are arranged on the peripheral side of the inner wall of the housing 1. A neutron generation mechanism is arranged at the bottom of the inner wall of the cover plate 2.

[0032] In this embodiment, the feeding structure includes a feeding pipe 6. A notch 7 is opened below the feeding pipe 6. A filter frame 8 is slidably connected inside the notch 7. The filter frame 8 slides above the housing 1. A connecting seat 11 is fixedly connected to one side of the housing 1. An electric push rod 9 is fixedly connected to one side of the connecting seat 11. The telescopic end of the electric push rod 9 is connected to one side of the filter frame 8. A filter screen 10 adapted to the inner diameter of the feeding pipe 6 is arranged in the middle of the filter frame 8. The feeding pipe 6 and the notch 7 below it guide the sample into the device, while the slidably connected filter frame 8 effectively removes the solid-phase potassium salt that does not meet the size requirements, ensuring that the sample entering the analysis system is pure and meets the standards. The sliding function of the filter frame 8 can be automatically adjusted. Cooperating with the electric push rod 9 inside the housing 1, the position of the filter frame 8 can be adjusted flexibly, further improving the automation degree and efficiency of the operation. The telescopic control of the electric push rod 9 enables the filter frame 8 to move smoothly along the track, ensuring the stable progress of the filtering process and avoiding sample blockage or unstable flow caused by improper position of the filter frame 8. The filter screen 10 arranged in the middle of the filter frame 8, which matches the inner diameter of the feeding pipe 6, can screen out unqualified substances, thereby improving the accuracy of the analysis results.

[0033] In this embodiment, the rotary scanning platform includes a connecting seat 11. A ball head seat 12 is fixedly connected below the connecting seat 11. A ball head 13 is movably connected inside the ball head seat 12. A support rod 14 is fixedly connected above the ball head 13. A support plate 15 is fixedly connected above the support rod 14. Four linear cylinders 26 are fixedly connected below the mounting plate. The irradiation area 3 is located above the support plate 15. The telescopic ends of the linear cylinders 26 contact the connecting seat 11. Multiple support columns 16 are fixedly connected to the bottom of the inner wall of the housing 1. The upper part of the support column 16 is rotatably connected to the support plate 15. A rotary cylinder 17 is fixedly connected to the bottom of the inner wall of the housing 1. The output end of the rotary cylinder 17 is fixedly connected to a mounting disc 18. A positioning rod 19 fixedly connected to the connecting seat 11 is fixedly connected above the mounting disc 18. A through groove 20 for the support rod 14 to slide out is formed on the opposite sides of the connecting seat 11, and the diameter of the through groove 20 is larger than the diameter of the support rod 14. The rotational connection between the support rod 14 and the support plate 15 allows the platform to be adjusted at various angles, further optimizing the irradiation range of the neutron beam. Through the four linear cylinders 26 installed below the platform, the movement of the platform can be controlled, and the sample can be ensured to maintain a stable posture during irradiation. The cooperation of the rotary cylinder 17 and the mounting disc 18 enables the platform to be positioned during rotation, ensuring that the sample can be in the analysis position every time it rotates. The setting of the support column 16 not only provides stable support but also ensures that the platform does not displace or shake during the entire rotation process, thus avoiding affecting the analysis results. The design of the through groove 20 ensures that the support rod 14 can slide freely during rotation, avoiding unnecessary friction, improving the rotation accuracy, and overall making the rotation control of the device more stable.

[0034] In this embodiment, the neutron generation mechanism includes a positioning frame 21 sliding below the inner wall of the cover plate 2. A neutron generator is arranged inside the positioning frame 21. A reflector 22 facing the emission source of the neutron generator is arranged below the positioning frame 21. An X-axis sliding frame 23 is arranged below the cover plate 2. A Z-axis sliding frame 24 is arranged below the X-axis sliding frame 23. The positioning frame 21 slides inside the Z-axis sliding frame 24. The X-axis sliding frame 23 and the Z-axis sliding frame 24 are determined by ball screws. By installing the neutron generation mechanism in the sliding positioning frame 21, the position of the neutron generator can be adjusted to meet the analysis requirements of different samples. A reflector 22 is installed below the positioning frame 21, and this reflector 22 can optimize the direction and irradiation angle of the neutron beam to ensure that the neutron beam can irradiate the sample surface. Installing the positioning frame 21 in the X-axis sliding frame 23 and the Z-axis sliding frame 24 and controlling the sliding trajectory through ball screws can achieve high-precision three-dimensional spatial positioning, ensuring the stability and accuracy of the neutron generator.

[0035] Working principle: First, the solid-phase potassium salt sample to be analyzed enters the device through the feed pipe 6. There is a notch 7 below the feed pipe 6, and a sliding filter frame 8 is installed in the notch 7. A suitable filter net 10 is equipped in the filter frame 8, which can effectively remove unqualified impurities in the sample. After filtration, the sample is sent to the rotating scanning platform. The rotating scanning platform is connected to the ball head seat 12 through the connecting seat 11, enabling the platform to rotate and position, ensuring that the sample is in a suitable position during the analysis process. A plurality of linear cylinders 26 below the platform are responsible for adjusting the rotation angle and inclination of the sample, ensuring that the sample can be evenly irradiated during neutron beam irradiation and avoiding errors caused by uneven irradiation. After the sample is positioned, the neutron generator inside the device adjusts the direction and intensity of the neutron beam through the positioning frame 21 to ensure that the neutron beam can accurately irradiate the sample surface. A reflector 22 is installed below the neutron generator. Through the guiding effect of the reflector 22, the irradiation angle of the neutron beam is further optimized to ensure that the neutron beam can be evenly irradiated to each part of the sample. After the neutron beam irradiation, the elements in the sample will undergo nuclear reactions and release radioactive isotopes, generating radioactive signals. The neutron activation analyzer 4 in the device is responsible for capturing these radioactive signals and converting the signals into electrical signals through a photomultiplier tube, and transmitting them to the analysis system for subsequent processing and analysis.

[0036] The present invention is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. An on-line analysis device for solid potassium salt based on neutron activation method, characterized in that Comprising: A housing (1), a cover plate (2) is arranged above the housing (1), a feeding structure is arranged above the cover plate (2), a rotating scanning platform is fixedly connected to the bottom of the inner wall of the housing (1), an irradiation area (3) is arranged above the rotating scanning platform, a neutron activation analyzer (4) for detecting the radioactive signal after the sample is excited and a photomultiplier tube (5) for detecting the neutron activation signal of the sample are arranged on the circumferential side of the inner wall of the housing (1), and a neutron generating mechanism is arranged at the bottom of the inner wall of the cover plate (2).

2. The on-line analysis device for solid potassium salt based on neutron activation method according to claim 1, characterized in that, The feeding structure includes a feeding pipe (6), a notch (7) is opened below the feeding pipe (6), a filter frame (8) is slidably connected inside the notch (7), the filter frame (8) slides above the housing (1), a connecting seat (11) is fixedly connected to one side of the housing (1), an electric push rod (9) is fixedly connected to one side of the connecting seat (11), and the telescopic end of the electric push rod (9) is connected to one side of the filter frame (8).

3. The on-line analysis device for solid potassium salt based on neutron activation method according to claim 1, wherein, A filter screen (10) adapted to the inner diameter of the feeding pipe (6) is arranged in the middle of the filter frame (8).

4. The on-line analysis device for solid potassium salt based on neutron activation method according to claim 1, characterized in that The rotating scanning platform includes a connecting seat (11), a ball head seat (12) is fixedly connected below the connecting seat (11), a ball head (13) is movably connected inside the ball head seat (12), a support rod (14) is fixedly connected above the ball head (13), a support plate (15) is fixedly connected above the support rod (14), four linear cylinders (26) are fixedly connected below the mounting plate, the irradiation area (3) is located above the support plate (15), and the telescopic end of the linear cylinder (26) touches the connecting seat (11).

5. The on-line analysis device for solid-phase potassium salt based on neutron activation method according to claim 1, characterized in that, Multiple support columns (16) are fixedly connected to the bottom of the inner wall of the housing (1), the support columns (16) are rotatably connected to the support plate (15) above, a rotating cylinder (17) is fixedly connected to the bottom of the inner wall of the housing (1), an output end of the rotating cylinder (17) is fixedly connected to a mounting disc (18), and a positioning rod (19) fixedly connected to the connecting seat (11) is fixedly connected above the mounting disc (18).

6. The on-line analysis device for solid potassium salt based on neutron activation method according to claim 1, characterized in that, A through groove (20) for the support rod (14) to slide out is opened on the opposite side of the connecting seat (11), and the diameter of the through groove (20) is larger than the diameter of the support rod (14).

7. An on-line analysis device for solid potassium salt based on neutron activation method according to claim 1, characterized in that, The neutron generating mechanism includes a positioning frame (21) slidably arranged below the inner wall of the cover plate (2), a neutron generator is arranged inside the positioning frame (21), and a reflector (22) facing the emission source of the neutron generator is arranged below the positioning frame (21).

8. The on-line analysis device for solid-phase potassium salt based on neutron activation method according to claim 1, characterized in that, An X-axis sliding frame (23) is arranged below the cover plate (2), a Z-axis sliding frame (24) is arranged below the X-axis sliding frame (23), and the positioning frame (21) slides inside the Z-axis sliding frame (24).

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