A material side sampling online automatic detection device

Abstract

The utility model provides an online automatic detection device for material side sampling, comprising: a sampling unit, used to take out materials from a material bin; a conveying unit, the conveying unit is connected to the sampling unit, used to receive and convey the material sample taken out by the sampling unit; an analysis unit, used to detect the conveyed material; and a detection table, the conveying unit is installed on the detection table, and the detection table is provided with at least one closed chamber above the conveying channel of the conveying unit for installing the analysis unit. The device takes out the material sample and conveys it to the detection table by setting the sampling unit and the conveying unit, and sets a closed chamber in the detection table to install the analysis unit, thereby reducing the impact of the on-site environment on the analysis unit and extending the service life of the analysis unit.

Description

Technical Field

[0001] The utility model relates to the technical field of material detection, in particular to an online automatic detection device for material side-sampling. Background Art

[0002] In the production operations of metallurgy, coal, cement, chemical, pharmaceutical and other industries, the composition detection of powder and granular raw materials in the production line is an indispensable process, which helps manufacturers understand the composition parameters of raw materials, make accurate adjustments to the production process, and improve product quality. There are two existing methods for detecting the chemical composition of industrial raw materials: offline detection and online detection: the offline detection method is to manually take samples from the on-site conveyor belt or pipeline and send them to the laboratory for grinding and sample preparation for detection; the online detection method is to set up the detection equipment on the production line for real-time online detection.

[0003] The manual on-site sampling detection scheme has a long detection cycle, low efficiency, time-consuming and labor-intensive, and the detection results are also affected by human factors; compared with manual sampling detection, the online detection scheme can realize detection automatically, with a short detection time, and the detection process does not require human intervention, ensuring the accuracy of the detection. For the detection of powder particles, the on-site environment is very harsh and complex, and most of the detection instruments are precision instruments. Therefore, some existing online detection devices are seriously polluted, have a short service life, and often fail. Utility Model Content

[0004] In view of the above defects of the prior art, the utility model provides an online automatic detection device for material side sampling to solve the technical problems of easy damage and short service life of the online detection device caused by the harsh detection environment.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides an online automatic detection device for material side sampling, comprising: a sampling unit, used to take out materials from a material bin; a conveying unit, the conveying unit is connected to the sampling unit, and is used to receive the material samples taken out by the sampling unit and convey them; an analysis unit, used to detect the conveyed material; and a detection table, the conveying unit is installed on the detection table, and the detection table is provided with at least one closed chamber above the conveying channel of the conveying unit for installing the analysis unit.

[0006] In one embodiment of the utility model, the detection platform includes a shell and a partition arranged in the shell, the partition divides the shell into an upper chamber and a lower chamber, the analysis unit is installed in the upper chamber, and the conveying belt of the conveying unit is installed in the lower chamber.

[0007] In one embodiment of the utility model, the detection platform also includes: a belt dust cover, which is installed above the conveyor belt to cover the conveyor belt; and an optical path dust cover, which is installed between the partition and the belt dust cover to form a detection channel of the analysis unit.

[0008] In one embodiment of the utility model, a dust exhaust fan is provided on the outer shell for exhausting dust in the chamber covered by the belt dust cover.

[0009] In one embodiment of the utility model, the optical path dust cover is provided with an air nozzle connected to an external air source, so as to form an air curtain inside the optical path dust cover.

[0010] In one embodiment of the utility model, the device also includes a flattening unit, which is installed on the side of the belt dust cover facing the conveyor belt and is used to flatten the material sample on the conveyor belt. The flattening unit is arranged upstream of the optical path dust cover along the conveying direction of the conveyor belt.

[0011] In one embodiment of the utility model, the device also includes a distance measuring unit and a control unit; the distance measuring unit is installed on the side of the belt dust cover facing the conveyor belt, and is used to detect the height of the material on the conveyor belt, and the distance measuring unit is arranged upstream of the optical path dust cover along the conveying direction of the conveyor belt; the control unit is electrically connected to the distance measuring unit and the analysis unit, and is used to control the action of the analysis unit according to the height.

[0012] In one embodiment of the utility model, the sampling unit includes: a material collector, used to take out material samples from a material bin; a first gate valve; a hose, one end of which is connected to the discharge port of the material collector through the first gate valve, and the other end of which is connected to the conveying unit; and a material discharge vibrator, which is installed at both ends of the hose.

[0013] In one embodiment of the utility model, the conveying unit includes a belt conveyor, the conveying belt of the belt conveyor is arranged in the detection table, the feeding end of the conveying belt is provided with a belt conveyor silo for receiving the material samples taken out by the sampling unit, and the discharging end of the conveying belt is provided with a belt scraper for scraping the material samples.

[0014] In one embodiment of the utility model, the conveying unit also includes: a discharge collector, which is used to collect material samples output by the belt conveyor; a second gate valve; a three-way distributor, the discharge collector is connected to the feed port of the three-way distributor through the second gate valve, and the three-way distributor is provided with a revolving door for adjusting the discharge port, and a driver for driving the revolving door; a material collector, which is connected to the first discharge port of the three-way distributor; and a recovery pipe, one end of which is connected to the second discharge port of the three-way distributor, and the other end is connected to the conveying pipe of the material bin.

[0015] The beneficial effects of the utility model are as follows: the utility model proposes an online automatic detection device for material side sampling, which takes out material samples and conveys them to the detection table by arranging a sampling unit and a conveying unit, and arranges a closed chamber in the detection table to install the analysis unit, thereby reducing the impact of the on-site environment on the analysis unit and extending the service life of the analysis unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A structural diagram of the device and the material bin provided for one embodiment of the utility model;

[0018] Figure 2 for Figure 1 Side view of

[0019] Figure 3 A partial cross-sectional view of the device provided in one embodiment of the utility model;

[0020] Figure 4 A structural diagram of an optical path dust cover provided in one embodiment of the utility model;

[0021] Figure 5 This is a structural diagram of a three-way distributor provided in one embodiment of the utility model.

[0022] Explanation of reference numerals: 100, sampling unit; 101, material collector; 102, first gate valve; 103, hose; 104, unloading vibrator; 200, conveying unit; 210, belt conveyor; 211, conveying belt; 212, belt conveyor silo; 213, belt scraper; 220, discharge collector; 230, second gate valve; 240, three-way distributor; 241, revolving door; 242, drive; 243, feed port; 244, first discharge 245, second material outlet; 250, material collector; 260, recovery pipe; 300, analysis unit; 400, test bench; 410, housing; 420, partition; 430, belt dust cover; 440, optical path dust cover; 441, air inlet; 442, annular air cavity; 443, annular air outlet; 450, dust exhaust fan; 500, flattening unit; 501, cylinder; 502, pressure plate; 600, distance measuring unit; 700, control unit. DETAILED DESCRIPTION

[0023] The following is an explanation of the implementation of the present invention through specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. In addition to the specific methods, equipment, and materials used in the embodiments, according to the technical personnel in this technical field's grasp of the prior art and the records of the present invention, any methods, equipment, and materials of the prior art that are similar or equivalent to the methods, equipment, and materials described in the embodiments of the present invention can also be used to implement the present invention.

[0024] It should be understood that the terms used in the embodiments of the present invention are to describe specific embodiments rather than to limit the scope of protection of the present invention. Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those commonly understood by those skilled in the art.

[0025] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model, so they have no substantive technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. In addition, the drawings only show the components related to the utility model rather than the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be changed arbitrarily, and the component layout type may also be more complicated.

[0026] See also Figure 1 and Figure 2 , Figure 1 and Figure 2 An embodiment of the utility model provides an online automatic detection device for side-sampling of materials, including a sampling unit 100, which is used to take out materials from a material bin. The sampling unit 100 has many structures, and its structure varies according to the form of the material. This embodiment mainly targets powdered materials. For example, the structure of the sampling mechanism disclosed in the scheme of "Automatic Detection Device for Powdered Materials" (Publication No.: CN115184221A) can be adopted; for materials in other forms, users can choose sampling units 100 of other structures as needed.

[0027] It can be understood that after the sampling unit 100 takes out the material, the material can also be crushed, which corresponds to the grinding mechanism in the above patent. The grinding mechanism is not necessary. When the material in the material bin meets the direct detection requirements, the grinding mechanism does not need to be set. When the material size in the material bin is large and different from the size requirements to be detected later, a grinding mechanism needs to be set to grind the material sample to a suitable size. In this embodiment, the powder material is directly taken out, so there is no need to set a grinding mechanism.

[0028] The device also includes a conveying unit 200, which is connected to the sampling unit 100 and is used to receive the material sample taken out by the sampling unit 100 and convey it. Since the sampling unit 100 has a diverse structure and may be ground after taking out, in order to ensure subsequent analysis and detection, the conveying unit 200 is set in this embodiment, and then the analysis unit 300 can be conveniently set on the conveying channel of the conveying unit 200.

[0029] The device also includes an analysis unit 300 and a detection table 400. The analysis unit 300 is used to detect the conveyed material. The conveying unit 200 is installed on the detection table 400. The detection table 400 is provided with at least one closed chamber located above the conveying channel of the conveying unit 200 for installing the analysis unit 300. By providing at least one closed chamber, the analysis unit 300 can be placed in the closed chamber and isolated from the external environment. In addition, a detection channel can be separately provided for the analysis unit 300 to detect material samples on the conveying channel. The detection table 400 mainly plays a supporting role, providing installation and fixation for the conveying unit 200 and the analysis unit 300.

[0030] It is understandable that different indicators need to be detected for different powder materials, and corresponding analysis units 300 are required. The analysis unit 300 can be, for example, LIBS (Laser Induced Breakdown Spectroscopy) technology, which forms plasma by focusing ultrashort pulse laser on the sample surface, and then analyzes the plasma emission spectrum to determine the material composition and content of the sample.

[0031] The device takes out material samples and transports them to the testing platform 400 by setting up a sampling unit 100 and a conveying unit 200, and sets up a closed chamber in the testing platform 400 to install the analysis unit 300, thereby reducing the impact of the on-site environment on the analysis unit 300 and extending the service life of the analysis unit 300.

[0032] See also Figure 3 In a specific embodiment of the utility model, the detection table 400 includes a shell 410 and a partition 420 arranged in the shell 410, and the partition 420 divides the shell 410 into an upper chamber and a lower chamber, the analysis unit 300 is installed in the upper chamber, and the conveyor belt 211 of the conveyor unit 200 is installed in the lower chamber. It can be understood that the shell 410 can be processed with a frame and a baffle, for example, and two independent chambers, namely the upper chamber and the lower chamber, can be obtained through the shell 410 and the partition 420, and the upper chamber and the lower chamber can be respectively provided with a door body that can be opened and closed independently. Specifically, for the upper chamber, its protection level can be, for example, IP68, and it mainly stores precision instruments and equipment such as the analysis unit 300, the optical system, and the computer host; for the lower chamber, its protection level can be, for example, IP65, and it mainly stores some parts of the conveyor unit 200. In this way, it can ensure that the entire detection process is closed, and the instruments and equipment are not affected by the environment, and the materials can be prevented from being contaminated, and the accuracy of the detection can be further ensured.

[0033] In a specific embodiment of the present invention, the detection station 400 further includes: a belt dust cover 430, which is installed above the conveyor belt 211 to cover the conveyor belt 211; and an optical path dust cover 440, which is installed between the partition 420 and the belt dust cover 430 to form a detection channel of the analysis unit 300. For the lower chamber, there will be powdered materials on the conveyor belt 211 therein, which will also generate dust. In order to minimize the impact of dust, the belt dust cover 430 and the optical path dust cover 440 are provided in this embodiment.

[0034] The belt dust cover 430 is a cover body, which can be directly mounted on the baffles on both sides of the conveyor belt 211. It and the conveyor belt 211 form a small cavity, which can further isolate the material sample and the detection environment. Most importantly, the belt dust cover 430 can be used as a mounting position for other components, such as the optical path dust cover 440 and the flattening unit 500 and the distance measuring unit 600 described below. For example, in this embodiment, the upper end of the optical path dust cover 440 is fixedly mounted on the partition 420, and the lower end is fixedly mounted on the belt dust cover 430.

[0035] In a specific embodiment of the utility model, a dust exhaust fan 450 is provided on the housing 410 to exhaust the dust in the chamber covered by the belt dust cover 430. In order to further ensure the cleanliness of the detection environment, a dust exhaust fan 450 is also provided here. The main function of the dust exhaust fan 450 is to exhaust the dust in the chamber covered by the belt dust cover 430 in time during the detection process, so as to prevent the dust from interfering with the detection of the analysis unit 300 and affecting the final detection result.

[0036] In a specific embodiment of the utility model, an air nozzle is provided on the optical path dust cover 440 to connect to an external air source, which is used to form an air curtain inside the optical path dust cover 440. For the upper chamber, it is an integrally sealed chamber, but for detection, it is still connected to the chamber covered by the belt dust cover 430 through the optical path dust cover 440, which inevitably causes dust to enter therein. Therefore, forming an air curtain inside the optical path dust cover 440 can further improve the cleanliness of the upper chamber.

[0037] It can be understood that the optical path dust cover 440 is cylindrical in shape as a whole, and the outer diameter of the upper section is larger than the outer diameter of the lower section. An annular air cavity 442 and an air inlet 441 are provided at the upper part of the optical path dust cover 440. The air nozzle is installed at the air inlet 441 and is connected to the annular air cavity 442. An annular air outlet 443 is provided at the bottom of the annular air cavity 442 to communicate with the inside of the optical path dust cover 440. The high-pressure gas provided by the gas source is blown through the air inlet 441, the annular air cavity 442, and the annular air outlet 443 in sequence to purge the inside of the optical path dust cover 440. The annular air outlet 443 is set very small, and its width can be set to 0.1 mm, for example. In this way, the air intake in the annular air cavity 442 is much larger than the air outlet, which will cause high-pressure gas to form in the annular air cavity 442. The high-pressure gas is quickly discharged from the very small annular air outlet 443, forming a 360° annular wind curtain to block the dust from moving upward.

[0038] In a specific embodiment of the utility model, the device also includes a flattening unit 500, which is installed on the side of the belt dust cover 430 facing the conveyor belt 211, and is used to flatten the material sample on the conveyor belt 211. The flattening unit 500 is arranged upstream of the optical path dust cover 440 along the conveying direction of the conveyor belt 211. The flattening unit 500 is provided to smooth the material sample and reduce the influence of the fluctuation of the material sample surface on the detection result. It can be understood that the spacing between the flattening unit 500 and the conveyor belt 211 can be adjusted to achieve the adjustment of the material sample surface height. The flattening unit 500 may include a cylinder 501 and a pressing plate 502, the cylinder 501 is fixedly mounted on the belt dust cover 430, and the pressing plate 502 is arranged at the end of the cylinder 501.

[0039] In a specific embodiment of the utility model, the device also includes a distance measuring unit 600 and a control unit 700; the distance measuring unit 600 is installed on the side of the belt dust cover 430 facing the conveyor belt 211, and is used to detect the height of the material on the conveyor belt 211. The distance measuring unit 600 can be a laser rangefinder, for example. The distance measuring unit 600 is arranged upstream of the optical path dust cover 440 along the conveying direction of the conveyor belt 211, so that the operation of the analysis unit 300 can be controlled according to the measured height of the material sample; the control unit 700 is electrically connected to the distance measuring unit 600 and the analysis unit 300, and is used to control the operation of the analysis unit 300 according to the height.

[0040] It can be understood that in a specific embodiment, the flattening unit 500, the distance measuring unit 600 and the optical path dust cover 440 can be provided at the same time, and at this time, the flattening unit 500, the distance measuring unit 600 and the optical path dust cover 440 are arranged in sequence from front to back according to the conveying direction of the conveyor belt 211. In addition, the control unit 700 can also control the action of the flattening unit 500 according to the height. The control unit 700 can be, for example, a computer, an industrial computer or a PLC.

[0041] In a specific embodiment of the utility model, the sampling unit 100 includes: a material collector 101, which is used to take out material samples from a material bin. The structure of the material collector 101 can refer to the structure in the above-mentioned patent document; a first gate valve 102, which can be used to control the opening and closing of the material outlet of the material collector 101; a hose 103, one end of which is connected to the material outlet of the material collector 101 through the first gate valve 102, and the other end is connected to the conveying unit 200; and a material discharge vibrator 104, which is installed at both ends of the hose 103. The material discharge vibrator 104 is mainly used to prevent the powdered material sample from blocking the hose 103, and one can be set at each end of the hose 103, or only one can be set.

[0042] In a specific embodiment of the utility model, the conveying unit 200 includes a belt conveyor 210, and the conveying belt 211 of the belt conveyor 210 is arranged in the testing platform 400. The feeding end of the conveying belt 211 is provided with a belt conveyor silo 212 for receiving the material samples taken out by the sampling unit 100. In this way, the sampling unit 100 can be opened when needed, and after a certain amount of material samples are taken out, the sampling unit 100 can be closed. During subsequent testing, the material can be continuously discharged through the belt conveyor silo 212. The discharging end of the conveying belt 211 is provided with a belt scraper 213 for scraping the material sample. The belt scraper 213 is tightly fitted with the conveying belt 211 at the lower end of the belt conveyor 210. The conveying belt 211 can well scrape off the residual material sample on the conveying belt 211 when moving, so as to avoid the residual sample from contaminating the sample to be tested next time.

[0043] In a specific embodiment of the utility model, the conveying unit 200 further includes: a discharge collector 220, the discharge collector 220 is used to collect material samples output by the belt conveyor 210; a second gate valve 230; a three-way distributor 240, the discharge collector 220 is connected to the feed port 243 of the three-way distributor 240 through the second gate valve 230, and the three-way distributor 240 is provided with a revolving door 241 for adjusting the discharge port, and a driver 242 for driving the revolving door 241 to move; a material collector 250, which is connected to the first discharge port 244 of the three-way distributor 240; and a recovery pipe 260, one end of which is connected to the second discharge port 245 of the three-way distributor 240, and the other end is connected to the conveying pipe of the material bin. The discharge collector 220 is mainly used to conveniently receive the material samples output by the belt conveyor 210, and conveniently connect to the three-way distributor 240 through the second gate valve 230. The material collector 250 is set to collect the test samples, so that it is convenient to take some samples to the laboratory for testing and data comparison experiments during the test process. The recovery pipeline 260 can return the tested material samples to the conveying pipeline to avoid waste.

[0044] The working process of the device is described in further detail below.

[0045] First, open the first gate valve 102, start the material picker 101, take out the material in the material bin, and transport it to the belt conveyor bin 212 through the hose 103. At the same time, the material discharge vibrator 104 starts to work to prevent the hose 103 from being blocked by poor material transportation. After the belt conveyor bin 212 has collected the material samples to be tested, the material picker 101 stops taking materials, and closes the first gate valve 102 and the material discharge vibrator 104.

[0046] Secondly, start the driver 242 of the three-way distributor 240, rotate the revolving door 241 to the left, close the first discharge port 244, and connect the feed port 243 and the second discharge port 245; then open the second gate valve 230, start the belt conveyor 210, and drive the material sample in the belt conveyor silo 212 to move forward. At the same time, the ventilation in the optical path dust cover 440 starts the wind curtain to blow, and turn on the dust exhaust fan 450. When the distance detected by the distance measuring unit 600 changes from D (the distance between the distance measuring unit 600 and the conveyor belt 211) to D1 (the distance between the distance measuring unit 600 and the uncompacted material on the conveyor belt 211), the cylinder 501 of the flattening unit 500 starts working, pushing the pressure plate 502 downward to compact and flatten the material; when the distance detected by the distance measuring unit 600 changes from D1 to D2 (the distance between the distance measuring unit 600 and the compacted material on the conveyor belt 211), the analysis unit 300 starts working to detect the flattened and compacted material samples; the detected material continues to be transported forward with the conveyor belt 211, falls into the feed port 243 of the three-way distributor 240, and continues to fall into the recovery pipe 260 from the second discharge port 245, and the material is recovered into the material bin or the conveyor pipe through the recovery pipe 260 for continued use.

[0047] Again, if it is necessary to take some samples to the laboratory for testing and data comparison tests during the detection process, the second gate valve 230 can be closed during the detection process, and then the revolving door 241 can be rotated to the right through the driver 242 of the three-way distributor 240 to close the second outlet 245 and connect the feed port 243 with the first outlet 244. Then, the second gate valve 230 is opened to allow the material sample to fall into the material collector 250 for automatic collection, packaging and marking. After the collection is completed, the second gate valve 230 is closed, and then the revolving door 241 can be rotated to the left through the driver 242 of the three-way distributor 240 to close the first outlet 244 and connect the feed port 243 with the second outlet 245.

[0048] Finally, when the distance measured by the distance measuring unit 600 for t seconds (the time required for the belt to continuously run for one cycle) is D, it means that the materials in the belt conveyor silo 212 have been completely emptied, the analysis unit 300, the belt conveyor 210, the cylinder 501, and the dust exhaust fan 450 all stop working, the wind curtain of the optical path dust cover 440 also stops blowing, and the second gate valve 230 is closed. At this point, a complete detection process is completed.

[0049] It can be seen from the above process that the entire detection process of the device can be automatically controlled according to the output of the ranging unit 600, the detection process is simpler, and the control process and logic are more reasonable; and the entire detection process is closed, the material will not be contaminated, and various detection instruments will not be affected by the environment.

[0050] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A material side sampling online automatic detection device, characterized in that: include: A sampling unit, used to take out materials from the material bin; A conveying unit, the conveying unit is connected to the sampling unit and is used to receive the material sample taken out by the sampling unit and convey it; An analysis unit for detecting the conveyed material; and The detection platform, the conveying unit is installed on the detection platform, and the detection platform is provided with at least one closed chamber above the conveying channel of the conveying unit for installing the analysis unit.

2. The material side sampling online automatic detection device according to claim 1 is characterized in that: The detection platform includes a shell and a partition arranged in the shell, the partition divides the shell into an upper chamber and a lower chamber, the analysis unit is installed in the upper chamber, and the conveying belt of the conveying unit is installed in the lower chamber.

3. The material side sampling online automatic detection device according to claim 2 is characterized in that: The testing station also includes: a belt dust cover, the belt dust cover being installed above the conveyor belt and used for covering the conveyor belt; and An optical path dust cover is installed between the partition plate and the belt dust cover to form a detection channel of the analysis unit.

4. The material side sampling online automatic detection device according to claim 3 is characterized in that: The shell is provided with a dust exhaust fan for exhausting dust in the chamber covered by the belt dust cover.

5. The material side sampling online automatic detection device according to claim 3 is characterized in that: The optical path dust cover is provided with an air nozzle connected to an external air source, which is used to form an air curtain inside the optical path dust cover.

6. The material side sampling online automatic detection device according to claim 3 is characterized in that: The device also includes a flattening unit, which is installed on the side of the belt dust cover facing the conveyor belt and is used to flatten the material sample on the conveyor belt. The flattening unit is arranged upstream of the optical path dust cover along the conveying direction of the conveyor belt.

7. The material side sampling online automatic detection device according to claim 3 is characterized in that: The device also includes a distance measuring unit and a control unit; the distance measuring unit is installed on the side of the belt dust cover facing the conveyor belt, and is used to detect the height of the material on the conveyor belt. The distance measuring unit is arranged upstream of the optical path dust cover along the conveying direction of the conveyor belt; the control unit is electrically connected to the distance measuring unit and the analysis unit, and is used to control the action of the analysis unit according to the height.

8. The material side sampling online automatic detection device according to claim 1 is characterized in that: The sampling unit comprises: A material taker, used to take out material samples from the material bin; First gate valve; A hose, one end of which is connected to the discharge port of the material extractor through the first gate valve, and the other end of which is connected to the conveying unit; and A material feeding vibrator is installed at both ends of the hose.

9. The material side sampling online automatic detection device according to claim 1 is characterized in that: The conveying unit includes a belt conveyor, the conveying belt of the belt conveyor is arranged in the detection table, the feeding end of the conveying belt is provided with a belt conveyor silo for receiving the material samples taken out by the sampling unit, and the discharging end of the conveying belt is provided with a belt scraper for scraping the material samples.

10. The material side sampling online automatic detection device according to claim 9, characterized in that: The conveying unit further comprises: A material discharge collector, the material discharge collector is used to collect material samples output by the belt conveyor; Second gate valve; A three-way distributor, wherein the discharge collector is connected to the feed port of the three-way distributor through a second gate valve, and a revolving door for adjusting the discharge port and a driver for driving the revolving door are provided in the three-way distributor; a material collector, connected to the first discharge port of the three-way distributor; and A recovery pipeline, one end of which is connected to the second discharge port of the three-way distributor, and the other end of which is connected to the conveying pipeline of the material bin.

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