Mineral online detection equipment

Abstract

The utility model discloses mineral online detection equipment, and belongs to the technical field of mineral detection. The mineral online detection equipment comprises a conveying device for conveying mineral samples and a detection device, the detection device is adjacent to the conveying device, and the detection device comprises a near-infrared light detection module, an X-ray fluorescence detection module and a laser detection module. The near-infrared light detection module is used for irradiating a mineral sample with near-infrared light and generating a near-infrared spectrum, the X-ray fluorescence detection module is used for irradiating the mineral sample with X-ray to generate fluorescence and generate an X-ray energy spectrum, and the laser detection module is used for irradiating the mineral sample with laser and generating a laser-induced breakdown spectrum; the near infrared spectrum, the X-ray energy spectrum and the laser-induced breakdown spectrum are combined for detecting and analyzing various components in the mineral sample. According to the arrangement, the laser-induced breakdown technology has higher detection capability on elements with smaller atomic numbers, and the laser-induced breakdown spectrum and the X-ray energy spectrum are combined, so that the components of a mineral sample are accurately detected.

Description

Technical Field

[0001] The present application belongs to the technical field of mineral detection, and specifically relates to an online mineral detection device. Background Art

[0002] In recent years, the problem of air pollution has become increasingly serious, and the irrational use of minerals and the use of inferior minerals are one of the reasons for the increasingly serious air pollution. Therefore, it is a crucial process to sample and test the composition of minerals before they are put into use. Moreover, by testing the composition of mineral samples, it is convenient to adjust the production process when producing and burning minerals to improve the utilization rate of minerals; for coal, composition testing is required during the mining, transportation and combustion of coal. The price of coal with different calorific values ​​varies greatly. The calorific value of coal is tested to accurately determine the price of coal. Therefore, by quickly testing the composition of mineral samples, it is also conducive to speeding up the settlement of coal trade.

[0003] In the related technology, mineral online detection equipment is usually used to detect various components in minerals. The mineral online detection equipment usually includes a near-infrared light detection module and an X-ray fluorescence detection module. The near-infrared light is used to generate a molecular spectrum to detect the molecular information in the mineral, and the X-ray fluorescence is used to generate an atomic spectrum to detect the atomic information in the mineral. The molecular spectrum and the atomic spectrum are combined to analyze and characterize the composition of the mineral. However, the X-ray fluorescence detection technology has poor characterization capabilities for elements with smaller atomic numbers, resulting in inaccurate detection results. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a mineral online detection device that can solve the problem of poor detection accuracy of mineral online detection devices in related technologies.

[0005] The present application provides an online mineral detection device, comprising:

[0006] A conveying device, the conveying device is used to convey the mineral sample;

[0007] A detection device is arranged adjacent to the conveying device, and comprises a near-infrared light detection module, an X-ray fluorescence detection module and a laser detection module which are arranged at intervals. The near-infrared light detection module is used to irradiate the mineral sample with near-infrared light and generate a near-infrared spectrum. The X-ray fluorescence detection module is used to irradiate the mineral sample with X-rays to generate fluorescence and generate an X-ray energy spectrum. The laser detection module is used to irradiate the mineral sample with laser and generate a laser induced breakdown spectrum. The near-infrared spectrum, the X-ray energy spectrum and the laser induced breakdown spectrum are combined to detect and analyze multiple components in the mineral sample.

[0008] In the embodiment of the present application, the detection device is simultaneously provided with a near-infrared light detection module, an X-ray fluorescence detection module and a laser detection module, and relies on near-infrared spectroscopy to detect the composition of minerals from the molecular layer, and relies on laser induced breakdown spectroscopy and X-ray energy spectrum to detect the composition of minerals from the atomic layer. The laser induced breakdown technology can make up for the detection ability of the X-ray fluorescence detection technology for elements with smaller atomic numbers, so the combination of laser induced breakdown spectroscopy and X-ray energy spectrum can more accurately detect the composition of elements with smaller atomic numbers.

[0009] The combination of near-infrared light detection module, X-ray fluorescence detection module and laser detection module can provide more comprehensive component detection of mineral samples, and can detect and analyze multiple components in mineral samples, which is beneficial to improving the detection accuracy of mineral samples.

[0010] Optionally, the laser detection module includes a laser emitter and a laser receiving optical fiber arranged at intervals, the laser emitter is used to emit a laser to the mineral sample transported by the transport device, the laser bombards the mineral sample so that the mineral sample absorbs laser energy and forms plasma, and the laser receiving optical fiber is directed toward the mineral sample transported by the transport device to receive the radiation light of the plasma.

[0011] With such an arrangement, the laser can be accurately emitted to and received by the laser transmitter and the laser receiving optical fiber to the mineral sample. Moreover, the laser receiving optical fiber is directed toward the mineral sample transported by the transport device, which is conducive to accurately receiving the radiation light of the plasma to ensure the generation of an accurate laser induced breakdown spectrum, which is more conducive to detecting the composition of elements with smaller atomic numbers.

[0012] Optionally, the laser detection module further includes a reflector, the reflective surface of the reflector faces the side where the emission end of the laser emitter is located, and the laser emitted by the laser emitter is reflected by the reflector and then emitted to the mineral sample transported by the transport device.

[0013] In this arrangement, by setting a reflector to reflect the laser emitted by the laser transmitter, the path of the laser is changed so that the laser can smoothly reach the mineral sample transported by the conveying device. In this way, there is no need for the emitting end of the laser transmitter to directly face the conveying device, and the installation position of the laser transmitter is not restricted.

[0014] Optionally, the laser detection module further includes a focusing lens, which is located between the reflector and the conveying device. The laser reflected by the reflector is focused by the focusing lens and then emitted to the mineral sample conveyed by the conveying device.

[0015] Such an arrangement, by setting a focusing lens to focus the laser, thereby forming a focused pulse laser, is more conducive to realizing the laser induced breakdown process, and further more conducive to accurately analyzing the composition of elements with smaller atomic numbers in mineral samples through laser induced breakdown spectroscopy technology.

[0016] Optionally, the reflector, the focusing lens and the conveying device are arranged at intervals along a first direction, and the first direction is perpendicular to a conveying plane of the conveying device.

[0017] With this arrangement, the arrangement direction of the reflector, focusing lens and conveying device is perpendicular to the conveying plane, so the laser is shot vertically to the mineral sample, which is more conducive to focusing the pulsed laser to excite the mineral sample and realize the laser induced breakdown process, and then more conducive to accurately analyzing the composition of elements with smaller atomic numbers in the mineral sample through laser induced breakdown spectroscopy technology.

[0018] Optionally, the near-infrared light detection module includes a near-infrared light source, a near-infrared optical fiber and a near-infrared spectrometer arranged at intervals, the near-infrared light source and the near-infrared optical fiber both facing the mineral sample transported by the conveying device, the near-infrared light source is used to emit near-infrared light to the mineral sample transported by the conveying device, the near-infrared optical fiber is used to receive the near-infrared light reflected by the mineral sample, and the near-infrared spectrometer is communicatively connected to the near-infrared optical fiber.

[0019] With this arrangement, both the near-infrared light source and the near-infrared optical fiber are directed toward the mineral sample transported by the transport device, which is beneficial for the near-infrared light source to accurately emit near-infrared light to the mineral sample, and is beneficial for the near-infrared optical fiber to accurately receive the near-infrared light after diffuse reflection, so as to ensure the generation of an accurate near-infrared spectrum, and is more beneficial for accurately detecting the composition of the mineral sample.

[0020] Optionally, the X-ray fluorescence detection module includes an X-ray tube and an X-ray detector arranged at intervals, and both the X-ray tube and the X-ray detector are directed toward the mineral sample transported by the conveying device. The X-ray tube is used to emit X-rays to the mineral sample transported by the conveying device, and the X-ray detector is used to receive the fluorescence excited by the mineral sample.

[0021] With this arrangement, both the X-ray tube and the X-ray detector are facing the mineral sample transported by the transport device, which is conducive to the X-ray tube accurately emitting X-rays to the mineral sample, and is also conducive to the X-ray detector accurately receiving the excited fluorescence to ensure the generation of an accurate X-ray energy spectrum, and is more conducive to accurately detecting the composition of the mineral sample.

[0022] Optionally, the mineral online detection equipment also includes a shell, and the near-infrared light detection module, the X-ray fluorescence detection module and the laser detection module are all arranged in the shell, and the shell is provided with a first opening, a second opening and a third opening, the first opening is used for allowing the near-infrared light to pass through, the second opening is used for allowing the X-ray to pass through, and the third opening is used for allowing the laser to pass through, and the first opening, the second opening and the third opening are respectively opposite to the conveying device.

[0023] In this way, by adding a shell, the near-infrared light detection module, the X-ray fluorescence detection module and the laser detection module are protected. The shell has a first opening, a second opening and a third opening to respectively prevent the near-infrared light, the X-ray and the laser from being blocked from reaching the conveying device. Moreover, the shell can prevent the near-infrared light, the X-ray and the laser from being emitted to areas outside the conveying device.

[0024] Optionally, the online detection equipment also includes an analysis device, which is communicatively connected to the near-infrared light detection module, the X-ray detection module and the laser detection module respectively, and is used to combine the near-infrared spectrum, the X-ray energy spectrum and the laser induced breakdown spectrum.

[0025] Such a setting, through the analysis device, is more conducive to combining near-infrared spectroscopy, X-ray energy spectrum and laser-induced breakdown spectroscopy, and thus more accurately analyzing and calculating multiple components in mineral samples.

[0026] Optionally, the near-infrared light detection module, the X-ray fluorescence detection module and the laser detection module are arranged at intervals along a conveying direction of the conveying device.

[0027] Such a configuration makes it convenient to install the near-infrared light detection module, the X-ray fluorescence detection module and the laser detection module in sequence along the conveying direction of the conveying device, and is also beneficial for the near-infrared light, X-rays and lasers to be directly directed toward the conveying device so as to accurately direct toward the mineral sample, which is beneficial for accurately detecting the composition of the mineral sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a mineral online detection device disclosed in an embodiment of the present application;

[0029] Figure 2 It is a structural schematic diagram of a mineral online detection device when detecting the composition of a mineral sample disclosed in an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 100-Conveying device,

[0032] 200-near infrared light detection module, 210-near infrared light source, 220-near infrared optical fiber, 230-first power supply, 240-near infrared spectrometer,

[0033] 300-X-ray fluorescence detection module, 310-X-ray light tube, 320-X-ray detector, 330-second power supply, 340-multi-channel analyzer,

[0034] 400-laser detection module, 410-laser transmitter, 420-laser receiving optical fiber, 430-reflector, 440-focusing lens, 450-laser spectrometer, A-first direction,

[0035] 500 - housing, 510 - first opening, 520 - second opening, 530 - third opening,

[0036] 600-Analysis device,

[0037] B- conveying direction,

[0038] S - Mineral sample. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0040] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0041] The mineral online detection equipment provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0042] Please refer to Figure 1-Figure 2The mineral online detection equipment disclosed in the embodiment of the present application includes a conveying device 100 and a detection device, wherein the conveying device 100 is used to convey a mineral sample S, the mineral may be coal, the mineral sample S may be a coal sample, or the mineral may be other minerals other than coal. The embodiment of the present application does not limit the specific category of the mineral sample S.

[0043] The conveying device 100 may be a belt conveyor or other forms of conveyors. The embodiment of the present application does not limit the conveying form of the conveying device 100. The conveying device 100 is arranged adjacent to the detection device. Specifically, the detection device may be installed above the conveying device 100 or on the side of the conveying device 100. The embodiment of the present application does not limit the installation position of the detection device, as long as the detection device can detect the mineral sample S during the process of the conveying device 100 transporting the mineral sample S.

[0044] The detection device includes a near-infrared light detection module 200, an X-ray fluorescence detection module 300, and a laser detection module 400, which are arranged at intervals. When the conveying device 100 conveys the mineral sample S, the near-infrared light detection module 200, the X-ray fluorescence detection module 300, and the laser detection module 400 respectively detect the mineral sample S. Among them, the near-infrared light detection module 200 is used to irradiate the mineral sample S with near-infrared light and generate a near-infrared spectrum, the X-ray fluorescence detection module 300 is used to irradiate the mineral sample S with X-rays to generate fluorescence and generate an X-ray energy spectrum, and the laser detection module 400 is used to irradiate the mineral sample S with lasers and generate a laser induced breakdown spectrum. The near-infrared spectrum, the X-ray energy spectrum, and the laser induced breakdown spectrum are combined to detect and analyze multiple components in the mineral sample S.

[0045] Specifically, the near-infrared light detection module 200 is used to emit near-infrared light to the mineral sample S and receive near-infrared light. Near-infrared light is an electromagnetic wave between visible light and mid-infrared light, with a wavelength in the range of 780nm-2526nm. The receiving end is used to collect the near-infrared light after diffuse reflection of the mineral sample S, and detect the molecular spectra of C, H, O, N functional groups and the like in the mineral sample S based on the received near-infrared light; the X-ray fluorescence detection module 300 is used to emit and receive X-rays. X-rays are particle streams generated by the transition of electrons in atoms between two energy levels with a large energy difference. They are electromagnetic radiation with a wavelength between ultraviolet rays and gamma rays. The energy range detected by the X-ray fluorescence detection module 300 is 0-10keV, and X-rays are used to detect atomic spectra of Si, Al, Ca, Fe, K, S and the like in minerals.

[0046] The laser detection module 400 is used to emit laser to the mineral sample S and receive laser. The laser detection module 400 adopts laser induced breakdown spectroscopy technology. The specific principle is to use focused pulse laser to excite the mineral sample S delivered by the delivery device 100. Usually, during the measurement period of 1 second, the mineral sample S will be subjected to multiple pulse excitations. The mineral sample S is heated to a temperature of 10,000 degrees Celsius or even higher. The high temperature will atomize the mineral sample S and form plasma. The composition of elements with smaller atomic numbers in the mineral sample S is analyzed by receiving the plasma.

[0047] In the embodiment of the present application, the detection device is simultaneously provided with a near-infrared light detection module 200, an X-ray fluorescence detection module 300 and a laser detection module 400, and relies on near-infrared spectroscopy to detect the composition of minerals from the molecular layer, and relies on laser induced breakdown spectroscopy and X-ray energy spectrum to detect the composition of minerals from the atomic layer. The laser induced breakdown technology can make up for the detection ability of the X-ray fluorescence detection technology for elements with smaller atomic numbers, so the combination of laser induced breakdown spectroscopy and X-ray energy spectrum can more accurately detect the composition of elements with smaller atomic numbers.

[0048] Moreover, this embodiment adopts a combination of a near-infrared light detection module 200, an X-ray fluorescence detection module 300 and a laser detection module 400, which makes the component detection of the mineral sample S more comprehensive, and can detect and analyze multiple components in the mineral sample S, which is beneficial to improving the detection accuracy of the mineral sample S.

[0049] In an alternative embodiment, reference Figure 1-Figure 2 As shown, the laser detection module 400 includes a laser emitter 410 and a laser receiving optical fiber 420 arranged at intervals. The laser emitter 410 is used to emit a laser to the mineral sample S transported by the transport device 100. The laser bombards the mineral sample S so that the mineral sample S absorbs the laser energy and forms plasma. The laser receiving optical fiber 420 is directed toward the mineral sample S transported by the transport device 100 to receive the radiation light of the plasma.

[0050] Optionally, the laser emitter 410 is a laser. The embodiment of the present application does not limit the specific form of the laser, as long as it can emit laser. The direction of the laser receiving optical fiber 420 intersects with the conveying plane of the conveying device 100, and the angle between the two is an acute angle α, and the range of the acute angle α can be 30°-60°. The conveying plane of the conveying device 100 is parallel to its conveying direction B. Of course, the angle α between the direction of the laser receiving optical fiber 420 and the conveying plane of the conveying device 100 can also be other angles.

[0051] By adopting this embodiment, laser can be accurately emitted to and received by the mineral sample S through the laser transmitter 410 and the laser receiving optical fiber 420. Moreover, the laser receiving optical fiber 420 is conducive to accurately receiving the radiation light of the plasma toward the mineral sample S transported by the transport device 100, so as to ensure the generation of accurate laser induced breakdown spectrum, which is more conducive to detecting the composition of elements with smaller atomic numbers.

[0052] Optionally, the laser detection module 400 further includes a laser spectrometer 450, the laser receiving optical fiber 420 is communicatively connected to the laser spectrometer 450, the laser signal collected by the laser receiving optical fiber 420 is transmitted to the laser spectrometer 450, and the laser spectrometer 450 generates a corresponding laser induced breakdown spectrum according to the radiation light received by the laser receiving optical fiber 420. Further optionally, the laser spectrometer 450 and the laser receiving optical fiber 420 can be communicatively connected via an electrical connection line, and of course, the communication connection can also be achieved by other means.

[0053] In a further embodiment, the laser detection module 400 further includes a reflector 430, the reflective surface of the reflector 430 faces the side where the emission end of the laser emitter 410 is located, and the reflective surface of the reflector 430 also faces the side where the conveying device 100 is located, and the reflective surface of the reflector 430 faces both the emission end of the laser emitter 410 and the conveying device 100, so that the laser emitted by the laser emitter 410 is reflected by the reflector 430 and then emitted to the mineral sample S conveyed by the conveying device 100. The embodiment of the present application does not limit the specific structure of the reflector 430, and it is sufficient that it can reflect the laser.

[0054] Optionally, the direction in which the laser emitter 410 emits the laser is parallel to the conveying direction B, the reflector 430 is tilted relative to the conveying plane, the angle between the reflecting surface of the reflector 430 and the conveying plane is an acute angle, and the direction of the laser after reflection from the reflecting surface is perpendicular to the conveying plane.

[0055] In this embodiment, a reflector 430 is provided to reflect the laser emitted by the laser emitter 410, thereby changing the path of the laser so that the laser can be smoothly emitted to the mineral sample S transported by the conveying device 100. In this way, there is no need for the emitting end of the laser emitter 410 to be directly facing the conveying device 100, and the installation position of the laser emitter 410 is not restricted.

[0056] Of course, in other embodiments, the laser detection module 400 may not be provided with the reflector 430 , and the emission end of the laser emitter 410 is directly facing the conveying device 100 .

[0057] In an alternative embodiment, reference Figure 1-Figure 2As shown, the laser detection module 400 further includes a focusing lens 440, which is located between the reflector 430 and the conveying device 100. The laser reflected by the reflector 430 is focused by the focusing lens 440 and then emitted to the mineral sample S conveyed by the conveying device 100. Specifically, the light incident surface of the focusing lens 440 faces the reflecting surface of the reflector 430, and the light emitting surface of the focusing lens 440 faces the conveying plane of the conveying device 100. The embodiment of the present application does not limit the specific structure of the focusing lens 440, and it is sufficient that it can play the effect of focusing the laser.

[0058] In this embodiment, by setting a focusing lens 440, the laser is focused to form a focused pulse laser, which is more conducive to realizing the laser induced breakdown process, and further more conducive to accurately analyzing the composition of elements in the mineral sample S through the laser induced breakdown spectroscopy technology.

[0059] Of course, in other embodiments, the laser detection module 400 may not be provided with the focusing lens 440 , and the laser reflected by the reflector 430 is directly emitted to the mineral sample S transported by the transport device 100 .

[0060] In an optional embodiment, the reflector 430 , the focusing lens 440 and the conveying device 100 are arranged at intervals along a first direction A, and the first direction A intersects with the conveying plane of the conveying device 100 but is not perpendicular to it.

[0061] In another embodiment, the first direction A is perpendicular to the conveying plane of the conveying device 100 .

[0062] In this embodiment, the arrangement direction of the reflector 430, the focusing lens 440 and the conveying device 100 is perpendicular to the conveying plane, so the laser is vertically emitted to the mineral sample S, which is more conducive to focusing the pulsed laser to excite the mineral sample S, realizing the laser induced breakdown process, and further more conducive to accurately analyzing the composition of elements in the mineral sample S through laser induced breakdown spectroscopy technology.

[0063] In an optional embodiment, the near-infrared light detection module 200 includes a near-infrared light source 210 and a near-infrared optical fiber 220 arranged at intervals, and both the near-infrared light source 210 and the near-infrared optical fiber 220 are directed toward the mineral sample S transported by the transport device 100, and the near-infrared light source 210 is used to emit near-infrared light to the mineral sample S transported by the transport device 100, and the near-infrared optical fiber 220 is used to receive the near-infrared light reflected by the mineral sample S. The embodiment of the present application does not limit the specific forms of the near-infrared light source 210 and the near-infrared optical fiber 220, and the near-infrared light source 210 can emit near-infrared light and the near-infrared optical fiber 220 can receive near-infrared light.

[0064] Optionally, the direction in which the near-infrared light source 210 emits near-infrared light intersects with the direction in which the near-infrared optical fiber 220 receives near-infrared light, and the angle β between the two is greater than 90° and less than 180°; further optionally, the angle β between the direction in which the near-infrared light source 210 emits near-infrared light and the direction in which the near-infrared optical fiber 220 receives near-infrared light is 135°, and the direction in which the near-infrared light source 210 emits near-infrared light can be perpendicular to the conveying plane of the conveying device 100, that is, the near-infrared light source 210 emits near-infrared light vertically to the conveying device 100, and the angle between the direction in which the near-infrared optical fiber 220 receives near-infrared light and the conveying plane of the conveying device 100 is 45°. Of course, the direction in which the near-infrared light source 210 emits near-infrared light and the direction in which the near-infrared optical fiber 220 receives near-infrared light can also be other directions.

[0065] With this embodiment, both the near-infrared light source 210 and the near-infrared optical fiber 220 are directed toward the mineral sample S transported by the transport device 100, which is beneficial for the near-infrared light source 210 to accurately emit near-infrared light to the mineral sample S, and is beneficial for the near-infrared optical fiber 220 to accurately receive the near-infrared light after diffuse reflection, so as to ensure the generation of an accurate near-infrared spectrum, and is more beneficial for accurately detecting the composition of the mineral sample S.

[0066] Optionally, the near-infrared light detection module 200 further includes a first power supply 230, which is electrically connected to the near-infrared light source 210, and the first power supply 230 supplies power to the near-infrared light source 210; the near-infrared light detection module 200 further includes a near-infrared spectrometer 240, which is communicatively connected to the near-infrared optical fiber 220, and the near-infrared spectrometer 240 is used to generate a near-infrared spectrum according to the near-infrared light received by the near-infrared optical fiber 220. Further optionally, the near-infrared spectrometer 240 and the near-infrared optical fiber 220 can be communicatively connected through an electrical connection line, and of course, the near-infrared spectrometer 240 and the near-infrared optical fiber 220 can also be communicatively connected through other methods.

[0067] In an optional embodiment, the X-ray fluorescence detection module 300 includes an X-ray tube 310 and an X-ray detector 320 arranged at intervals, the X-ray tube 310 and the X-ray detector 320 are both directed toward the mineral sample S transported by the transport device 100, the X-ray tube 310 is used to emit X-rays to the mineral sample S transported by the transport device 100, and the X-ray detector 320 is used to receive the fluorescence stimulated by the mineral sample S. The embodiment of the present application does not limit the specific forms of the X-ray tube 310 and the X-ray detector 320, and the X-ray tube 310 can emit X-rays and the X-ray detector 320 can receive X-rays.

[0068] Optionally, the direction in which the X-ray tube 310 emits X-rays intersects with the direction in which the X-ray detector 320 receives X-rays, and an angle γ therebetween is greater than 60° and less than 120°; further optionally, the angle γ therebetween in the direction in which the X-ray tube 310 emits X-rays and the direction in which the X-ray detector 320 receives X-rays is 90°, the direction in which the X-ray tube 310 emits X-rays may intersect with the conveying plane of the conveying device 100, and the angle therebetween is 45°, and the direction in which the X-ray detector 320 receives X-rays intersects with the conveying plane of the conveying device 100, and the angle therebetween is 45°. Of course, the direction in which the X-ray tube 310 emits X-rays and the direction in which the X-ray detector 320 receives X-rays may also be other directions.

[0069] With this embodiment, both the X-ray tube 310 and the X-ray detector 320 are directed toward the mineral sample S transported by the transport device 100, which is beneficial for the X-ray tube 310 to accurately emit X-rays to the mineral sample S, and is beneficial for the X-ray detector 320 to accurately receive the reflected X-rays to ensure the generation of an accurate X-ray energy spectrum, which is more beneficial for accurately detecting the composition of the mineral sample S.

[0070] Optionally, the X-ray fluorescence detection module 300 also includes a second power supply 330, which can be a high-voltage power supply. The second power supply 330 is electrically connected to the X-ray tube 310, and the second power supply 330 supplies power to the X-ray tube 310; the X-ray fluorescence detection module 300 also includes a multi-channel analyzer 340, and the X-ray detector 320 is communicatively connected to the multi-channel analyzer 340. The multi-channel analyzer 340 is used to perform statistical analysis on the fluorescence signal received by the X-ray detector 320 according to the energy size. Further, optionally, the X-ray detector 320 and the multi-channel analyzer 340 can be communicated through an electrical connection line, or can be communicated through other methods.

[0071] In the scheme of this application, reference is made to Figure 1 and Figure 2 As shown, the mineral online detection equipment also includes a shell 500, which can be a rectangular structure. The embodiment of the present application does not limit the specific structure of the shell 500; the near-infrared light detection module 200, the X-ray fluorescence detection module 300 and the laser detection module 400 are all arranged in the shell 500, and the shell 500 is provided with a first opening 510, a second opening 520 and a third opening 530, and the first opening 510, the second opening 520 and the third opening 530 are respectively opposite to the conveying device 100, the first opening 510 is used for near-infrared light to pass through, the second opening 520 is used for X-rays to pass through, and the third opening 530 is used for lasers to pass through.

[0072] Optionally, the near-infrared light source 210, the near-infrared optical fiber 220, the first power source 230, the near-infrared spectrometer 240, the X-ray tube 310, the second power source 330, the X-ray detector 320, the multi-channel analyzer 340, the laser emitter 410, the laser receiving optical fiber 420, the reflector 430, the focusing lens 440 and the laser spectrometer 450 are respectively installed in the housing 500, and each component can be separately connected to the housing 500 by welding, bonding, etc.; or, the near-infrared light detection module 200 has a first bracket, the near-infrared light source 210, the near-infrared optical fiber 220, the first power source 2 30. The near-infrared spectrometer 240 is respectively installed on the first bracket, the X-ray fluorescence detection module 300 has a second bracket, the X-ray light tube 310, the second power supply 330, the X-ray detector 320 and the multi-channel analyzer 340 are respectively installed on the second bracket, the laser detection module 400 has a third bracket, the laser emitter 410, the laser receiving optical fiber 420, the reflector 430, the focusing lens 440 and the laser spectrometer 450 are respectively installed on the third bracket, the first bracket, the second bracket and the third bracket are respectively installed in the shell 500, and the installation method is not limited to bonding, welding, clamping, bolting, etc.

[0073] In this embodiment, the near-infrared light detection module 200, the X-ray fluorescence detection module 300 and the laser detection module 400 are protected by adding a housing 500. The housing 500 has a first opening 510, a second opening 520 and a third opening 530, which respectively prevent near-infrared light, X-rays and lasers from being blocked from being emitted to the conveying device 100. Moreover, the housing 500 can prevent near-infrared light, X-rays and lasers from being emitted to areas outside the conveying device 100. In addition, there is no need to separately add a housing to each detection module, which is conducive to reducing the number of components and facilitating the unified installation of multiple detection modules.

[0074] Of course, in other embodiments, the mineral online detection equipment can be provided with multiple shells, the shells correspond to the detection modules one by one, the near-infrared light detection module 200, the X-ray fluorescence detection module 300 and the laser detection module 400 are respectively arranged in the corresponding shells, the shell corresponding to the near-infrared light detection module 200 has a first opening 510, the shell corresponding to the X-ray fluorescence detection module 300 has a second opening 520, and the shell corresponding to the laser detection module 400 has a third opening 530.

[0075] In an optional embodiment, the mineral online detection device further includes an analysis device 600, which is respectively connected to the near-infrared light detection module 200, the X-ray detection module and the laser detection module 400 in communication, and the analysis device 600 is used to combine the near-infrared spectrum, the X-ray energy spectrum and the laser induced breakdown spectrum. Optionally, the analysis device 600 is respectively connected to the near-infrared spectrometer 240, the multi-channel analyzer 340 and the laser spectrometer 450 in communication, and the analysis device 600 can be a computer, and the analysis device 600 combines the near-infrared spectrum of the near-infrared spectrometer 240, the X-ray information statistically obtained by the multi-channel analyzer 340 and the laser induced breakdown spectrum of the laser spectrometer 450 to analyze and calculate the various components in the mineral sample S.

[0076] By adopting this embodiment, through the analysis device 600, it is more conducive to combining near-infrared spectroscopy, X-ray energy spectrum and laser induced breakdown spectroscopy, so as to more accurately analyze and calculate multiple components in the mineral sample S.

[0077] Of course, in other embodiments, the mineral online detection equipment may not be provided with the analysis device 600, and the near-infrared spectrum, X-ray energy spectrum and laser induced breakdown spectroscopy may be combined in other ways to obtain various component information in the mineral sample S.

[0078] In this embodiment, the mineral sample S is a coal sample, and the conveying device 100 conveys a plurality of coal samples, and collects the near-infrared spectrum, X-ray energy spectrum, and laser-induced breakdown spectrum of each coal sample. Then, the industrial composition of each coal sample is detected, including calorific value, ash content, volatile matter, moisture content, and sulfur content. A database of coal sample spectrum data and corresponding coal sample industrial composition is established. Using the data in the database, a coal industrial composition prediction model is established through a machine learning algorithm (such as partial least squares method, neural network, etc.). When the energy spectrum and reflectivity spectrum of the coal sample are input, the prediction model can predict the calorific value, ash content, volatile matter, moisture content, and sulfur content of the coal. The energy spectrum and reflectivity spectrum of the coal sample to be predicted are collected, and finally the industrial composition of the coal sample to be tested is predicted through the model.

[0079] In an optional embodiment, the arrangement direction of the near-infrared light detection module 200, the X-ray fluorescence detection module 300, and the laser detection module 400 intersects with the conveying direction B of the conveying device 100. In other words, the near-infrared light detection module 200, the X-ray fluorescence detection module 300, and the laser detection module 400 are not arranged at intervals along the conveying direction B of the conveying device 100.

[0080] In another embodiment, the near-infrared light detection module 200 , the X-ray fluorescence detection module 300 , and the laser detection module 400 are arranged at intervals along the conveying direction B of the conveying device 100 .

[0081] By adopting this embodiment, it is convenient to install the three in sequence along the conveying direction B of the conveying device 100, and it is also beneficial for near-infrared light, X-rays and lasers to be directly emitted to the conveying device 100 so as to accurately emit to the mineral sample S, which is beneficial for accurately detecting the composition of the mineral sample S.

[0082] Of course, the near-infrared light detection module 200, the laser detection module 400, and the X-ray fluorescence detection module 300 may be arranged at intervals along the conveying direction B of the conveying device 100; the laser detection module 400, the near-infrared light detection module 200, and the X-ray fluorescence detection module 300 may be arranged at intervals along the conveying direction B of the conveying device 100; the laser detection module 400, the X-ray fluorescence detection module 300, and the near-infrared light detection module 200 may be arranged at intervals along the conveying direction B of the conveying device 100; the X-ray fluorescence detection module 300, the laser detection module 400, and the near-infrared light detection module 200 may be arranged at intervals along the conveying direction B of the conveying device 100; the X-ray fluorescence detection module 300, the infrared light detection module, and the laser detection module 400 may be arranged at intervals along the conveying direction B of the conveying device 100. There is no restriction on the order in which the near-infrared light detection module 200, the laser detection module 400, and the X-ray fluorescence detection module 300 are arranged.

[0083] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A mineral online detection device, characterized in that: include: A conveying device (100), the conveying device (100) being used to convey a mineral sample (S); A detection device, the detection device being arranged adjacent to the conveying device (100), the detection device comprising a near-infrared light detection module (200), an X-ray fluorescence detection module (300) and a laser detection module (400) arranged at intervals, the near-infrared light detection module (200) being used to irradiate the mineral sample (S) with near-infrared light and generate a near-infrared spectrum, the X-ray fluorescence detection module (300) being used to irradiate the mineral sample (S) with X-rays to generate fluorescence and generate an X-ray energy spectrum, the laser detection module (400) being used to irradiate the mineral sample (S) with lasers and generate a laser induced breakdown spectrum, the near-infrared spectrum, the X-ray energy spectrum and the laser induced breakdown spectrum being combined to detect and analyze multiple components in the mineral sample (S).

2. The mineral online detection equipment according to claim 1, characterized in that: The laser detection module (400) comprises a laser transmitter (410) and a laser receiving optical fiber (420) arranged at intervals, wherein the laser transmitter (410) is used to transmit a laser to the mineral sample (S) transported by the transport device (100), wherein the laser bombards the mineral sample (S) so that the mineral sample (S) absorbs laser energy and forms plasma, and the laser receiving optical fiber (420) is directed toward the mineral sample (S) transported by the transport device (100) so as to receive radiation light from the plasma.

3. The mineral online detection equipment according to claim 2, characterized in that: The laser detection module (400) further comprises a reflector (430), wherein a reflective surface of the reflector (430) faces a side where an emission end of the laser emitter (410) is located, and laser light emitted by the laser emitter (410) is reflected by the reflector (430) and then emitted to the mineral sample (S) transported by the transport device (100).

4. The mineral online detection equipment according to claim 3, characterized in that: The laser detection module (400) further comprises a focusing lens (440), wherein the focusing lens (440) is located between the reflector (430) and the conveying device (100), and the laser reflected by the reflector (430) is focused by the focusing lens (440) and then emitted to the mineral sample (S) conveyed by the conveying device (100).

5. The mineral online detection equipment according to claim 4, characterized in that: The reflector (430), the focusing lens (440), and the conveying device (100) are arranged at intervals along a first direction (A), and the first direction (A) is perpendicular to a conveying plane of the conveying device (100).

6. The mineral online detection equipment according to claim 1, characterized in that: The near-infrared light detection module (200) comprises a near-infrared light source (210), a near-infrared optical fiber (220) and a near-infrared spectrometer (240) which are arranged at intervals; the near-infrared light source (210) and the near-infrared optical fiber (220) are both directed toward the mineral sample (S) transported by the transport device (100); the near-infrared light source (210) is used to emit near-infrared light to the mineral sample (S) transported by the transport device (100); the near-infrared optical fiber (220) is used to receive the near-infrared light reflected by the mineral sample (S); and the near-infrared spectrometer (240) is communicatively connected to the near-infrared optical fiber (220).

7. The mineral online detection equipment according to claim 1, characterized in that: The X-ray fluorescence detection module (300) comprises an X-ray tube (310) and an X-ray detector (320) which are arranged at intervals, the X-ray tube (310) and the X-ray detector (320) both facing the mineral sample (S) transported by the transport device (100), the X-ray tube (310) being used to emit X-rays to the mineral sample (S) transported by the transport device (100), and the X-ray detector (320) being used to receive the fluorescence excited by the mineral sample (S).

8. The mineral online detection equipment according to claim 1, characterized in that: The mineral online detection device further comprises a housing (500), wherein the near-infrared light detection module (200), the X-ray fluorescence detection module (300) and the laser detection module (400) are all arranged in the housing (500), and the housing (500) is provided with a first opening (510), a second opening (520) and a third opening (530), wherein the first opening (510) is used for allowing the near-infrared light to pass through, the second opening (520) is used for allowing the X-ray to pass through, and the third opening (530) is used for allowing the laser to pass through, and the first opening (510), the second opening (520) and the third opening (530) are respectively opposite to the conveying device (100).

9. The mineral online detection equipment according to claim 1, characterized in that: The online detection device further comprises an analysis device (600), wherein the analysis device (600) is respectively connected in communication with the near-infrared light detection module (200), the X-ray detection module and the laser detection module (400), and the analysis device (600) is used to combine the near-infrared spectrum, the X-ray energy spectrum and the laser induced breakdown spectrum.

10. The mineral online detection equipment according to claim 1, characterized in that: The near-infrared light detection module (200), the X-ray fluorescence detection module (300), and the laser detection module (400) are arranged at intervals along a conveying direction (B) of the conveying device (100).

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