Dual-X-ray energy spectrum acquisition device and online detection equipment

Abstract

The utility model discloses a double-X-ray energy spectrum acquisition device and online detection equipment. The double-X-ray energy spectrum acquisition device comprises a first energy spectrum acquisition module and a second energy spectrum acquisition module, the first energy spectrum acquisition module comprises a low-atomic-number target X-ray emitter and a first energy spectrum detector, first X-rays emitted by the low-atomic-number target X-ray emitter irradiate a to-be-detected sample to generate first characteristic X-rays, and the first characteristic X-rays are received by the first energy spectrum detector to obtain a first energy spectrum signal; the second energy spectrum acquisition module comprises a high atomic number target X-ray emitter and a second energy spectrum detector, a second X-ray emitted by the high atomic number target X-ray emitter irradiates the sample to be detected to generate a second characteristic X-ray, and the second characteristic X-ray is received by the second energy spectrum detector to obtain a second energy spectrum signal. According to the scheme, the problem that the detection precision of online detection equipment is poor can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to substance component detection technical field especially, relate to a kind of double X-ray energy spectrum acquisition device and online detection equipment. BACKGROUND

[0002] The composition of mineral substance can be detected by online detection equipment, which includes energy spectrum acquisition device and composition analysis device. The energy spectrum acquisition device uses X-ray to irradiate the measured substance, excites the characteristic X-ray of each element in the substance. The energy of the characteristic X-ray of different elements is different, and the energy spectrum of these characteristic X-rays is measured. The composition analysis device can analyze the composition and content of corresponding elements according to the area of different energy peaks in the energy spectrum.

[0003] However, the energy spectrum acquisition device is limited by the performance of the energy spectrum detector. As the number of incident photons of the energy spectrum detector increases, the probability of simultaneously counting two or more photons in a single statistical cycle increases. At this time, the relationship between the energy spectrum detector signal and the number of incident photons changes from linear increase to flat, so the energy spectrum detector signal increases to a certain extent and no longer increases, thereby making the number of photons that the energy spectrum detector can receive fixed, thus increasing the probability of invalid statistics of the energy spectrum detector, resulting in less scattered information and fluorescent information obtained from the energy spectrum signal, thereby affecting the detection accuracy of elements, and thus causing the detection accuracy of the online detection equipment to be poor. SUMMARY

[0004] The utility model discloses a kind of double X-ray energy spectrum acquisition device and online detection equipment, to solve the problem of poor detection accuracy of online detection equipment.

[0005] To solve the above problems, the utility model adopts the following technical solutions:

[0006] A kind of double X-ray energy spectrum acquisition device, comprising:

[0007] The first energy spectrum acquisition module includes a low atomic number target X-ray emitter and a first energy spectrum detector. The first X-ray emitted by the low atomic number target X-ray emitter irradiates the sample to be detected to generate first characteristic X-rays. The first characteristic X-rays are received by the first energy spectrum detector to obtain a first energy spectrum signal.

[0008] The second energy spectrum acquisition module includes a high atomic number target X-ray emitter and a second energy spectrum detector. The second X-ray emitted by the high atomic number target X-ray emitter irradiates the sample to be detected to generate second characteristic X-rays. The second characteristic X-rays are received by the second energy spectrum detector to obtain a second energy spectrum signal.

[0009] The first energy spectrum signal and the second energy spectrum signal are used to obtain content information of at least one element in the sample to be detected.

[0010] The technical scheme adopted by the utility model can achieve the following beneficial effects:

[0011] The utility model discloses a double X ray energy spectrum acquisition device, and the double X ray energy spectrum acquisition device includes first energy spectrum acquisition module and second energy spectrum acquisition module, wherein, first energy spectrum acquisition module includes low atomic number target material X ray emitter and first energy spectrum detector, and second energy spectrum acquisition module includes high atomic number target material X ray emitter and second energy spectrum detector. In this scheme, because the excitation energy of the scattering peak of low atomic number target material X ray emitter is lower, so the background scattering proportion in the first energy spectrum signal obtained by first energy spectrum acquisition module is smaller, so that the obtained element fluorescence peak signal is stronger, so first energy spectrum acquisition module is mainly used to collect fluorescence peak information. Because the characteristic peak position energy of high atomic number target material X ray emitter is higher, the scattering background proportion in the second energy spectrum signal obtained by second energy spectrum acquisition module is higher, so the scattering signal that second energy spectrum acquisition module can obtain is stronger. Therefore, the double X ray energy spectrum acquisition device disclosed by the application can obtain stronger fluorescence peak signal and stronger scattering signal under the condition that the performance of energy spectrum detector is limited. Therefore, the application can obtain more fluorescence information and scattering information simultaneously, thereby being more favorable to improve the detection precision of elements, and therefore effectively improving the detection precision of online detection equipment. BRIEF DESCRIPTION OF DRAWINGS

[0012] The accompanying drawings, which are included to provide a further understanding of the utility model, form a part of the utility model and are used to explain the utility model together with the specification. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0013] Figure 1 It is a structure schematic view of the double X ray energy spectrum acquisition device disclosed by the utility model embodiment;

[0014] Figure 2 It is the energy spectrum information graph that the double X ray energy spectrum acquisition device disclosed by the utility model embodiment obtains;

[0015] Figure 3 It is the structure view of the X ray emitter of the double X ray energy spectrum acquisition device disclosed by the utility model embodiment;

[0016] Figure 4 It is a structure schematic view of the online detection equipment disclosed by the utility model embodiment;

[0017] Figure 5Another structure schematic diagram of the online detection equipment is disclosed in the embodiment of the utility model.

[0018] Mark explanation:

[0019] 10-sample conveying device, 110-transporting mechanism, 120-flattening mechanism, 121-scraper, 122-pressing roller, 20-dual X-ray energy spectrum acquisition device, 200-first energy spectrum acquisition module, 210-low atomic number target X-ray emitter, 220-first energy spectrum detector, 230-first voltage controller, 300-second energy spectrum acquisition module, 310-high atomic number target X-ray emitter, 320-second energy spectrum detector, 330-second voltage controller, 400-radiation shielding cover, 410-containing cavity, 420-first light transmission area, 430-second light transmission area, 440-first Mylar film, 450-second Mylar film, 460-detection hole, 470-third light transmission area, 500-distance detection piece, 600-temperature controller, 710-signal controller, 720-signal processor, 800-sample to be detected, A-first energy spectrum signal, B-second energy spectrum signal, 30-near-infrared light detection device, 40-component analysis device. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model clearer, the following will combine the specific embodiments of the utility model and the corresponding drawings to clearly and completely describe the technical scheme of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] The following will combine the drawings to specifically describe the technical scheme disclosed by each embodiment of the utility model.

[0022] As Figures 1 to 3 shown, the utility model discloses a dual X-ray energy spectrum acquisition device 20, and the disclosed dual X-ray energy spectrum acquisition device 20 includes first energy spectrum acquisition module 200 and second energy spectrum acquisition module 300.

[0023] First energy spectrum acquisition module 200 and second energy spectrum acquisition module 300 both have X-ray emitter and energy spectrum detector, and X-ray emitter generates incident X-ray under voltage, and incident X-ray excites the sample to be detected, and this incident X-ray is called primary X-ray. The element in the material excited by primary X-ray will radiate secondary X-ray, and the secondary X-ray is detected by energy spectrum detector. Figure 3X-rays, which are called secondary X-rays (X-ray fluorescence + scattered light), and different elements emit secondary X-rays with energy characteristics or wavelength characteristics matching their elements. The energy spectrum detector will collect the energy and quantity of the secondary X-rays emitted by the measured materials. Finally, the collected X-ray information is converted into the types and contents of each element in the material through an analysis model, and the composition information of the sample to be measured is further obtained through the element or content information.

[0024] Specifically, the first energy spectrum acquisition module 200 includes a low atomic number target X-ray emitter 210 and a first energy spectrum detector 220. The low atomic number target X-ray emitter 210 specifically works as follows. Figure 2 As shown in the figure, the X-ray tube of the low atomic number target X-ray emitter 210 uses an element with a low atomic number as a target. A high voltage is applied to the cathode of the X-ray tube to accelerate the electrons generated by the hot filament of the X-ray tube and bombard the target. X-rays are generated by the interaction of the electrons and the target and are emitted from the window. The light here is the first X-rays. In the low atomic number target X-ray emitter 210, the target is made of a low atomic number material. In the periodic table of chemical elements, the elements arranged before copper can be low atomic number materials, so materials before copper can be selected as low atomic number targets. For example, aluminum, potassium, calcium, titanium, chromium, manganese, iron, cobalt, and nickel.

[0025] In the specific detection process, the first X-rays emitted by the low atomic number target X-ray emitter 210 irradiate the sample to be detected 800. The first X-rays are primary X-rays. The primary X-rays interact with the sample to be detected 800 to produce first characteristic X-rays. The first characteristic X-rays are secondary X-rays, which include scattering and fluorescence. The scattering here includes background scattering, Compton scattering (incoherent scattering), and Rayleigh scattering (coherent scattering), and the fluorescence is photoelectric effect. The specific principles of photoelectric effect, Compton scattering, and Rayleigh scattering are known technologies, and will not be described here. The first characteristic X-rays are received by the first energy spectrum detector 220 to obtain a first energy spectrum signal B.

[0026] In one alternative embodiment, the first energy spectrum detector 220 can be a silicon drift detector. The silicon drift detector uses high-purity n-type silicon as a substrate. A large-area, uniform pn abrupt junction is fabricated on one side as the incident window for characteristic X-rays, while a series of p-type concentric drift electrodes are implanted on the other side. A point-like n-type anode is fabricated at the center of the concentric circles to collect charge. A reverse bias voltage is applied between the anode and the outer edge of the drift rings, causing complete depletion of the substrate, thus forming a drift electric field component parallel to the surface within the substrate. When characteristic X-rays are incident on the silicon drift detector window, ionization generates electron-hole pairs. Under the influence of the deflection electric field, holes are absorbed by nearby drift rings, while electrons drift towards the central anode and are absorbed under the influence of the transverse deflection electric field, generating an electrical pulse signal proportional to the incident X-ray energy. The electrical signal is pre-amplified by a charge-sensitive field-effect transistor directly integrated on the anode, and then output to a digital pulse processor for further processing, thereby forming an energy spectrum signal. Of course, the first energy spectrum detector 220 can also be other types of X-ray detectors. The specific principle and structure of the first energy spectrum detector 220 are well-known technologies and are not limited in this article.

[0027] The first energy spectrum signal B can be processed as shown in the attached figure. Figure 2 The energy spectrum curve shown in B is from the attached diagram. Figure 2 As shown by curve B, the scattering peaks and background of the low atomic number target X-ray emitter 210 are relatively small, resulting in stronger fluorescence peak signals for elements at the same dead time in the energy spectrum detector. Therefore, the first energy spectrum acquisition module 200 can acquire fluorescence with a higher signal-to-noise ratio, and the fluorescence information can be used to achieve more accurate detection of light elements. Here, light elements refer to elements with smaller atomic numbers. For example, magnesium, aluminum, and silicon are all light elements. Therefore, the first energy spectrum acquisition module 200 in this application focuses on the acquisition of fluorescence peak information, which can also be understood as focusing on the detection of light elements.

[0028] The second energy spectrum acquisition module 300 includes a high atomic number target X-ray emitter 310 and a second energy spectrum detector 320. The high atomic number target X-ray emitter 310 emits second X-rays that irradiate the sample 800 to produce second characteristic X-rays. The second characteristic X-rays are received by the second energy spectrum detector 320 to obtain the second energy spectrum signal A. The high atomic number target X-ray emitter 310 has the same structure and working principle as the low atomic number target X-ray emitter 210 mentioned above. The difference is that the target material used in the high atomic number target X-ray emitter 310 is a high atomic number target material. In the periodic table of elements, elements arranged after copper can be high atomic number materials, such as rubidium, strontium, molybdenum, and silver.

[0029] The second energy spectrum detector 320 herein works in the same way as the first energy spectrum detector 220, and thus will not be described herein. The second energy spectrum acquisition module 300 obtains an energy spectrum curve as shown by curve A in FIG. 8A. As shown by curve A in FIG. 8A, compared with a low-atomic-number target light tube, a high-atomic-number target light tube generally needs a relatively high tube voltage to excite the target scattering peak, and the scattering peak and the background scattering account for a high proportion, so that the intensity of the fluorescent peak is weak under the same dead time of the energy spectrum detector, and high-intensity scattering information can be obtained by using a high-atomic-number target. Figure 2 ​

[0030] In the embodiments disclosed in the present application, the first energy spectrum acquisition module 200 focuses on the fluorescent peak information, and the second energy spectrum acquisition module focuses on the scattering peak information acquisition, so that under the condition that the performance of the energy spectrum detector is limited, the energy spectrum of the sample to be detected 800 is acquired by using the low-atomic-number target X-ray emitter 210 and the first energy spectrum detector 220, and high-signal-to-noise ratio light element fluorescent information can be obtained; the energy spectrum of the sample to be detected 800 is acquired by using the high-atomic-number target X-ray emitter 310 and the second energy spectrum detector 320, and high-signal-to-noise ratio scattering information can be obtained. Therefore, the dual X-ray energy spectrum acquisition device disclosed in the present application can obtain more fluorescent peak information and more scattering information by using the bremsstrahlung radiation of the X-ray emitter, so that the scattering and fluorescent information with higher precision can be extracted, and more characteristic information of the sample to be detected 800 can be obtained, thereby being more conducive to realizing the precise detection of multiple elements, and thus effectively improving the detection precision of the online detection equipment.

[0031] In one scheme, the first energy spectrum signal B is used at least to obtain the fluorescent information in the sample to be detected 800. The second energy spectrum signal A is used at least to obtain the scattering information in the sample to be detected 800. At this time, the characteristic spectrum of the low-atomic-number target X-ray emitter 210 is superimposed with the Rayleigh scattering peak and the Compton scattering peak corresponding to the scattering of the sample to be detected 800, and cannot be distinguished. However, the Compton scattering peak and the Rayleigh scattering peak can be separated by using the high-atomic-number target. The equivalent atomic mass content information can be obtained according to the Rayleigh scattering peak area and the Compton scattering peak area, and the metal compound content in the sample to be detected 800 is proportional to the equivalent atomic mass, so that the information can also be used to calculate the content information of the metal oxide. Therefore, the measurement precision of the metal oxide can be further improved in the present application. In this scheme, the corresponding fluorescent information and scattering performance are obtained by the corresponding energy spectrum signals, and the precise detection of multiple elements can be better realized.

[0032] ​​In another alternative, the dual X-ray energy spectrum acquisition device 20 can further include a radiation shield 400, the radiation shield 400 is provided with a receiving cavity 410, and the first energy spectrum acquisition module 200 and the second energy spectrum acquisition module 300 can be arranged in the receiving cavity 410. Here, it can be understood that the radiation shield 400 is a mounting shell, but this mounting shell has a radiation shielding effect. The radiation shield 400 can have a first light transmission area 420 and a second light transmission area 430. Here, the first light transmission area 420 and the second light transmission area 430 are light transmission areas. Here, the first light transmission area 420 and the second light transmission area 430 can be solid light transmission areas, and of course can also be light transmission holes. The first light transmission area 420 is arranged corresponding to the first energy spectrum acquisition module 200. At this time, the first X-ray passes through the first light transmission area 420 and irradiates the sample 800 to be detected. The first characteristic X-ray excited is received by the first energy spectrum detector 220 through the first light transmission area 420. The second light transmission area 430 can be arranged corresponding to the second energy spectrum acquisition module 300. At this time, the second X-ray passes through the second light transmission area 430 and irradiates the sample 800 to be detected. The second characteristic X-ray excited is received by the second energy spectrum detector 320 through the second light transmission area 430.

[0033] In this scheme, the first energy spectrum acquisition module 200 and the second energy spectrum acquisition module 300 are arranged in the radiation shield 400. Therefore, the influence of external radiation on the first energy spectrum acquisition module 200 and the second energy spectrum acquisition module 300 is avoided, and the influence of the first energy spectrum acquisition module 200 and the second energy spectrum acquisition module 300 on the external environment is also avoided. Therefore, the use safety of the X-ray fluorescence analysis equipment is improved.

[0034] Optionally, the radiation shield 400 can be made of a metal material with shielding function, or the radiation shield 400 can include a mounting shell and a shielding layer. The mounting shell has the above-mentioned receiving cavity 410. The surface of the mounting shell can be attached with a shielding layer or coated with a shielding layer, so that the mounting shell has a shielding effect.

[0035] Further, the dual X-ray energy spectrum acquisition device 20 can further include a first Mylar film 440 and a second Mylar film 450. The first Mylar film 440 can cover the first light transmission area 420, and the second Mylar film 450 can cover the second light transmission area 430. The Mylar film is a kind of polyester film. At this time, the Mylar film can improve the transmittance of X-rays. At the same time, the Mylar film has a strong ability to absorb vacuum air. Therefore, the influence of air on the characteristic X-ray can be reduced, so as to further improve the detection accuracy of the online detection equipment.

[0036] The topography of the sample 800 to be detected will also have a certain influence on the detection result. In order to eliminate the influence, in another optional scheme, the dual X-ray energy spectrum acquisition device 20 can further include a distance detection piece 500. The distance detection piece 500 can be arranged in the radiation shielding cover 400. The radiation shielding cover 400 can be provided with a detection hole 460. The distance detection piece 500 is arranged opposite to the detection hole 460. The distance detection piece 500 can be used to detect the height and topography information of the sample 800 to be detected. In this scheme, the distance detection piece 500 can detect the degree of protrusion and depression of the sample surface, so as to judge the height and topography information of the sample 800 to be detected. If the topography of the sample 800 to be detected does not meet the relevant requirements, the topography of the sample 800 to be detected can be flattened, so as to eliminate the influence of the topography on the X-ray fluorescence analysis equipment detection in the detection and analysis process. Of course, the distance detection piece 500 is also used to mechanically calibrate the collected data of the sample 800 to be detected. For example, according to the topography and height information collected by the distance detection piece 500, the data collected by the energy spectrum detector can be calibrated.

[0037] Optionally, the distance detection piece 500 can be a laser range finder. Of course, it can also be an ultrasonic range finder. The specific principle and structure of the distance detection piece 500 are known technologies, which are not limited herein.

[0038] Further, the dual X-ray energy spectrum acquisition device 20 can further include a temperature controller 600. The temperature controller 600 can be arranged in the radiation shielding cover 400. The temperature controller 600 can be used to regulate the temperature in the containing cavity 410. Since the outgoing X-ray and X-ray fluorescence are easily affected by the working temperature and the environmental humidity, the temperature controller 600 is used to regulate the temperature in the containing cavity 410, so as to control the working temperature and the environmental humidity within a certain range, thereby avoiding affecting the outgoing X-ray and X-ray fluorescence. Therefore, the detection performance of the dual X-ray energy spectrum acquisition device 20 can be further improved.

[0039] Optionally, the temperature controller 600 can be a fan, an air conditioner or a water-cooled heat dissipation module. Of course, the temperature controller 600 can also be other temperature control structures, which are not limited herein.

[0040] In another alternative, the dual X-ray energy spectrum acquisition device 20 can further include a signal controller 710 and a signal processor 720. The signal controller 710 can be electrically connected with the first energy spectrum acquisition module 200 and the second energy spectrum acquisition module 300, which can specifically be the low-atomic-number target X-ray emitter 210, the first energy spectrum detector 220, the high-atomic-number target X-ray emitter 310, and the second energy spectrum detector 320 as described above. The signal processor 720 can be electrically connected with the signal controller 710. The signal controller 710 can control the acquisition and transmission of the energy spectrum signals and transmit the acquired energy spectrum signals to the signal processor 720. The signal processor 720 herein can be understood as an upper computer.

[0041] At this time, the signal controller 710 controls the first energy spectrum acquisition module 200 and the second energy spectrum acquisition module 300 to acquire data. The acquired data is transmitted to the signal processor 720 for processing and then sent to the composition analysis device 40 below to complete the composition detection of the material to be detected.

[0042] The signal processor 720 herein can be provided in the dual X-ray energy spectrum acquisition device 20. Of course, in another alternative, the signal processor 720 can be a separate device of the online detection equipment. The signals acquired by the dual X-ray energy spectrum acquisition device 20 can be first transmitted to the signal processor 720 and then transmitted to the composition analysis device 40 below. Alternatively, the signal processor 720 can also be part of the composition analysis device 40, i.e., the processing unit below.

[0043] In another alternative, the first energy spectrum acquisition module 200 can further include a first voltage controller 230, which can be used to apply a first driving voltage to the low-atomic-number target X-ray emitter 210. The second energy spectrum acquisition module 300 can further include a second voltage controller 330, which can be used to apply a second driving voltage to the high-atomic-number target X-ray emitter 310. The first driving voltage is less than the second driving voltage.

[0044] In this scheme, since the scattering peak energy of the low-atomic-number target is low, the low-atomic-number target X-ray emitter 210 can be driven at a low voltage, so that the background scattering ratio under low voltage is smaller in the case that the first driving voltage is less than the second driving voltage, thereby making the signal of the fluorescence peak of the element stronger. In addition, since a higher driving voltage is required to excite the characteristic peak of the high-atomic-number target, the second driving voltage is greater than the first driving voltage, so that the background ratio of the energy spectrum is higher, thereby the intensity of the fluorescence peak is weaker, and the scattering peak can be better distinguished.

[0045] In an alternative embodiment, the target material of the low-atomic-number target X-ray emitter 210 can be chromium. The target material of the high-atomic-number target X-ray emitter 310 can be silver. In this case, the X-rays generated by chromium and silver as target materials have a shorter wavelength, thus making the generated energy spectrum have a higher resolution.

[0046] Based on the dual X-ray energy spectrum acquisition device 20 disclosed in the embodiments of the present application, an online detection device is also disclosed. The disclosed online detection device comprises the dual X-ray energy spectrum acquisition device 20 described in any of the above embodiments.

[0047] The online detection device disclosed in the present application further comprises a sample conveying device 10 for conveying a sample 800 to be detected and a component analysis device 40. The dual X-ray energy spectrum acquisition device 20 described above is used to irradiate the sample 800 to be detected with X-rays and generate a sample energy spectrum signal. The sample energy spectrum signal here refers to the first energy spectrum signal and the second energy spectrum signal described above. The component analysis device 40 is in communication connection with the dual X-ray energy spectrum acquisition device 20. The component analysis device 40 is used to detect a plurality of components in the sample 800 to be detected through the sample energy spectrum signal.

[0048] Alternatively, the component analysis device 40 can comprise a processing unit and an analysis unit. The processing unit is used to perform processing on the received X-ray fluorescence signal to output corresponding sample energy spectrum signal data. The analysis unit performs sample energy spectrum signal data inference based on a detection model of the sample 800 to be detected to obtain a detection result of the sample 800 to be detected. The detection result can comprise one or more of ash component, ash content, volatile matter, carbon, hydrogen, ash melting point, total water, total sulfur, and calorific value. Further alternatively, the processing unit can be a spectrometer 401c, and the analysis unit can be a single-chip microcomputer, a programmable logic controller, etc., capable of inferring and combining the data of the sample energy spectrum signal based on deep learning. Of course, the processing unit can also be part of the dual X-ray energy spectrum acquisition device, such as the signal processor 720 described above. The component analysis device can only comprise the analysis unit.

[0049] In another alternative, the sample conveying device 10 can comprise a conveying mechanism 110 and a flattening mechanism 120. The conveying mechanism 110 can be used to convey the sample 800 to be detected, and the conveying mechanism 110 is also used to carry the sample 800 to be detected. The flattening mechanism 120 can be arranged on the side of the conveying mechanism 110 facing the carried sample 800 to be detected. The flattening mechanism 120 can be used to shape the sample 800 to be detected conveyed on the conveying mechanism 110.

[0050] In this scheme, the transmission mechanism 110 can transport the to-be-detected sample 800, so as to increase the detection area of the to-be-detected sample 800, thereby obtaining more accurate detection results. In addition, the flattening mechanism 120 can perform flattening or scraping operations on the surface of the to-be-detected sample 800 during the transportation of the to-be-detected sample 800, thereby ensuring the flatness of the surface of the to-be-detected sample 800, and further improving the accuracy of the detection results.

[0051] Optionally, the transmission mechanism 110 can be a roller transmission mechanism 110, and of course can also be a transmission belt mechanism, and of course the transmission mechanism 110 can also be other mechanisms, which are not limited herein.

[0052] Optionally, the flattening mechanism 120 can be a scraper 121, so as to perform scraping operations on the surface of the to-be-detected sample 800.

[0053] In another optional scheme, the flattening mechanism 120 includes a scraper 121 and a pressure roller 122, and the scraper 121 and the pressure roller 122 are spaced apart along the transmission direction of the transmission mechanism 110. In this scheme, the scraper 121 can scrape the to-be-detected sample 800, and the scraped to-be-detected sample 800 is sent to the pressure roller 122, and the pressure roller 122 can flatten the to-be-detected sample 800, thereby improving the flatness of the surface of the to-be-detected sample 800, and further improving the accuracy of the detection results, and avoiding the influence of the topography of the to-be-detected sample 800 on the detection results.

[0054] In another scheme, the online detection device disclosed in the present application can further include a near-infrared light detection device 30, which is used to irradiate the to-be-detected sample 800 with near-infrared light and generate a sample spectrum signal, and the component analysis device 40 combines the sample spectrum signal and the sample energy spectrum signal to detect multiple components in the to-be-detected sample 800.

[0055] Specifically, the component analysis device 40 inferences and combines the data of the sample spectrum signal and the sample energy spectrum signal based on deep learning, and the combination mode includes: combining the data of the sample energy spectrum signal with deep learning, calculating an ash value, and then splicing the ash value into the data of the sample spectrum signal, using a deep learning algorithm to automatically learn the weight of the sample spectrum signal and the ash data, fusing two-dimensional information, and outputting a heat value; or directly splicing the preprocessed energy spectrum data and the spectrum data, combining a deep learning algorithm, automatically learning the weight of the sample spectrum signal data and the sample energy spectrum signal data, and fusing two-dimensional information, and outputting a heat value.

[0056] In this way, the near-infrared light detection device 30 and the dual X-ray energy spectrum acquisition device 20 are combined, and the spectral data and the energy spectrum data are combined based on a deep learning algorithm, which is more conducive to accurately detecting multiple components in the to-be-detected sample 800 and achieving accurate component analysis.

[0057] Specifically, the near-infrared light detection device 30 is provided with a transmitting end and a receiving end, the transmitting end is used for transmitting near-infrared light to the to-be-detected sample 800, the near-infrared light is an electromagnetic wave between visible light and mid-infrared light, the wavelength is in the range of 780nm-2526nm, and the receiving end is used for collecting the near-infrared light after diffuse reflection of the to-be-detected sample 800. The specific structure and principle of the near-infrared light detection device 30 are known technologies, and details are not described herein.

[0058] In this scheme, the near-infrared light detection device 30 and the dual X-ray energy spectrum acquisition device 20 are combined, and the detection of the to-be-detected sample 800 is no longer single, and multiple components in the to-be-detected sample 800 can be detected and analyzed, which is conducive to improving the detection accuracy of the to-be-detected sample 800.

[0059] In an alternative scheme, the near-infrared light detection device 30 and the dual X-ray energy spectrum acquisition device 20 can be installed in the same housing.

[0060] Alternatively, in another alternative scheme, the near-infrared light detection device 30 can also be used as one of the modules of the dual X-ray energy spectrum acquisition device 20, the near-infrared light detection device 30, the first energy spectrum acquisition module 200 and the second energy spectrum acquisition module 300 are arranged side by side in the radiation shield 400, the radiation shield 400 is provided with a third light transmission area, the transmitting end of the near-infrared light detection device 30 emits near-infrared light, the near-infrared light is emitted through the third light transmission area, is reflected by the to-be-detected sample 800, and then is received by the receiving end of the near-infrared light detection device after passing through the third light transmission area. The near-infrared light detection device 30, the first energy spectrum acquisition module 200 and the second energy spectrum acquisition module 300 can also share the signal controller 710 and the signal processor 720.

[0061] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A dual X-ray energy spectrum acquisition apparatus, characterized by, The application relates to a dual X-ray energy spectrum acquisition device (20) for acquiring content information of at least one element in a sample (800) to be detected. The dual X-ray energy spectrum acquisition device (20) comprises a first energy spectrum acquisition module (200) and a second energy spectrum acquisition module (300). The first energy spectrum acquisition module (200) comprises a low-atomic-number target X-ray emitter (210) and a first energy spectrum detector (220). The low-atomic-number target X-ray emitter (210) irradiates the sample (800) to be detected with first X-rays to generate first characteristic X-rays.

2. The dual X-ray energy spectrum acquisition apparatus of claim 1, wherein, The first characteristic X-rays are received by the first energy spectrum detector (220) to acquire a first energy spectrum signal (B).

3. The dual X-ray energy spectrum acquisition apparatus of claim 1, wherein, The second energy spectrum acquisition module (300) comprises a high-atomic-number target X-ray emitter (310) and a second energy spectrum detector (320).

4. The dual X-ray energy spectrum acquisition apparatus of claim 3, wherein, The high-atomic-number target X-ray emitter (310) irradiates the sample (800) to be detected with second X-rays to generate second characteristic X-rays.

5. The dual X-ray energy spectrum acquisition apparatus of claim 3, wherein, The second characteristic X-rays are received by the second energy spectrum detector (320) to acquire a second energy spectrum signal (A).

6. The dual X-ray energy spectrum acquisition apparatus of claim 3, wherein, The first energy spectrum signal (B) and the second energy spectrum signal (A) are used to acquire the content information of at least one element in the sample (800) to be detected. The first energy spectrum signal (B) is used to acquire fluorescence information in the sample (800) to be detected. The second energy spectrum signal (A) is used to acquire scattering information in the sample (800) to be detected. The dual X-ray energy spectrum acquisition device (20) further comprises a radiation shielding cover (400). The radiation shielding cover (400) is provided with a containing cavity (410). The first energy spectrum acquisition module (200) and the second energy spectrum acquisition module (300) are arranged in the containing cavity (410). The radiation shielding cover (400) is provided with a first light transmission area (420) and a second light transmission area (430). The first light transmission area (420) is arranged in correspondence with the first energy spectrum acquisition module (200). The second light transmission area (430) is arranged in correspondence with the second energy spectrum acquisition module (300). The dual X-ray energy spectrum acquisition device (20) further comprises a first Mylar film (440) and a second Mylar film (450). The first Mylar film (440) covers the first light transmission area (420). The second Mylar film (450) covers the second light transmission area (430). The dual X-ray energy spectrum acquisition device (20) further comprises a distance detection member (500). The distance detection member (500) is arranged in the radiation shielding cover (400). The radiation shielding cover (400) is provided with a detection hole (460). The distance detection member (500) is arranged opposite to the detection hole (460). The distance detection member (500) is used to detect the height and topographic information of the sample (800) to be detected. The dual X-ray energy spectrum acquisition device (20) further comprises a temperature controller (600). The temperature controller (600) is arranged in the radiation shielding cover (400). The temperature controller (600) is used to regulate the temperature in the containing cavity (410).

7. The dual X-ray energy spectrum acquisition apparatus of claim 1, wherein, The double X-ray energy spectrum acquisition device (20) further comprises a signal controller (710) and a signal processor (720), the signal controller (710) is electrically connected with the first energy spectrum acquisition module (200) and the second energy spectrum acquisition module (300), the signal processor (720) is electrically connected with the signal controller (710), the signal controller (710) is used for controlling the acquisition and transmission of the energy spectrum signal, and the acquired energy spectrum signal is transmitted to the signal processor (720).

8. The dual X-ray energy spectrum acquisition apparatus of claim 1, wherein, The first energy spectrum acquisition module (200) further comprises a first voltage controller (230), the first voltage controller (230) is used for applying a first driving voltage to the low-atomic-number target X-ray emitter (210); the second energy spectrum acquisition module (300) further comprises a second voltage controller (330), the second voltage controller (330) is used for applying a second driving voltage to the high-atomic-number target X-ray emitter (310); wherein the first driving voltage is less than the second driving voltage.

9. The dual X-ray energy spectrum acquisition apparatus of claim 1, wherein, The target of the low-atomic-number target X-ray emitter (210) is chromium; the target of the high-atomic-number target X-ray emitter (310) is silver.

10. An in-line detection apparatus, characterized by The online detection equipment comprises a sample conveying device (10), a component analysis device (40) and the double X-ray energy spectrum acquisition device (20) of any one of claims 1 to 9; the sample conveying device (10) is used for conveying a to-be-detected sample (800), the double X-ray energy spectrum acquisition device (20) is used for irradiating the to-be-detected sample (800) with X-rays and generating a sample energy spectrum signal; the component analysis device (40) is in communication connection with the double X-ray energy spectrum acquisition device (20), and the component analysis device (40) is used for detecting a plurality of components in the to-be-detected sample (800) through the sample energy spectrum signal.

11. The online detection apparatus of claim 10, wherein, The sample conveying device (10) comprises a conveying mechanism (110) and a flattening mechanism (120), the conveying mechanism (110) is used for conveying a to-be-detected sample (800), the flattening mechanism (120) is arranged on a side of the conveying mechanism (110) facing the to-be-detected sample (800), and the flattening mechanism (120) is used for shaping the to-be-detected sample (800) conveyed on the conveying mechanism (110).

12. The online detection device of claim 11, wherein, The flattening mechanism (120) comprises a scraper (121) and a compression roller (122), and the scraper (121) and the compression roller (122) are distributed along the conveying direction of the conveying mechanism (110).

13. The online detection apparatus of claim 10, wherein, The online detection equipment further comprises a near-infrared light detection device (30), the near-infrared light detection device (30) is used for irradiating the to-be-detected sample (800) with near-infrared light and generating a sample spectrum signal, and the component analysis device (40) combines the sample spectrum signal and the sample energy spectrum signal to detect a plurality of components in the to-be-detected sample (800).

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