High-voltage controller, energy spectrum equipment and mineral detection system

Abstract

The utility model discloses a high-voltage controller, energy spectrum equipment and a mineral detection system. And the high-voltage controller is used for controlling the on-off of a ray excitation circuit of the ray source. The high-voltage controller comprises a power supply control module and a box cover control module. The power supply control module comprises a first relay, the first relay comprises a first switch and a first control circuit used for controlling on-off of the first switch, and the first switch can be connected with the ray excitation circuit in series. The box cover control module comprises a second relay and a first detection device used for detecting whether the radiation shielding cover is in a closed state or not. The second relay comprises a second switch and a second control circuit used for controlling on-off of the second switch, the second switch is connected with the first control circuit in series, and the second control circuit is connected with the first detection device in series. The high-voltage controller can ensure that the power supply to the radiation source is cut off when the protection box is not closed, so that the use safety of the mineral detection system is improved.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and in particular to a high-voltage controller, an energy spectrum device, and a mineral detection system. Background Art

[0002] X-ray inspection technology currently plays a vital role in mineral testing. Mineral inspection systems utilizing this technology can measure the internal structure of minerals like coal and iron ore, obtaining relevant data for mining and structural analysis. For example, X-ray fluorescence spectroscopy is used to analyze coal individually during coal testing.

[0003] In related technologies, mineral detection systems use radiation sources to emit radiation. Radiation is radioactive and can cause harm to the human body. If maintenance personnel fail to properly operate or neglect the radiation shielding box, leaving the radiation source powered on and emitting radiation, this can easily lead to safety accidents. Utility Model Content

[0004] The present application provides a high-voltage controller, an energy spectrum device, and a mineral detection system. The high-voltage controller can ensure that the power supply to the radiation source is disconnected when the protective box is not closed, thereby improving the safety of the mineral detection system.

[0005] The technical solution is as follows:

[0006] The present application provides a high-voltage controller for controlling the on / off switching of a radiation excitation circuit of a radiation source. The high-voltage controller includes a power supply control module and a lid control module. The power supply control module includes a first relay, which includes a first switch and a first control circuit for controlling the on / off switching of the first switch. The first switch can be connected in series with the radiation excitation circuit. The lid control module includes a second relay and a first detection device for detecting whether the radiation shielding cover is closed. The second relay includes a second switch and a second control circuit for controlling the on / off switching of the second switch. The second switch is connected in series with the first control circuit, which is in series with the first detection device.

[0007] When the first detection device detects that the radiation shielding cover is in the closed state, the first detection device cooperates with the second control circuit to control the second switch, so that the first control circuit can control the first switch to be closed, so that the ray excitation circuit is connected to the first switch.

[0008] When the first detection device detects that the radiation shielding cover is in the open state, the first detection device cooperates with the second control circuit to control the second switch, so that the first control circuit can control the first switch to be disconnected, so that the ray excitation circuit is disconnected.

[0009] The technical solution is further described below:

[0010] In one embodiment, when the first detection device detects that the radiation shielding cover is in the closed state, the first detection device can generate a conduction signal to turn on the second control circuit. When the radiation shielding cover is in the open state, the first detection device can generate a disconnection signal to turn off the second control circuit.

[0011] In one embodiment, when the radiation shielding cover is closed, the first detection device is in an on state, thereby turning on the second control circuit and controlling the second switch to be off, thereby disconnecting the first control circuit and controlling the first switch to be closed. When the radiation shielding cover is open, the first detection device is in an off state, thereby disconnecting the second control circuit and controlling the second switch to be closed, thereby turning on the first control circuit and controlling the first switch to be off, thereby disconnecting the radiation excitation circuit.

[0012] In one embodiment, the first detection device includes a mechanical switch arranged on the radiation shielding box and a matching piece arranged on the radiation shielding cover, and the mechanical switch is connected in series with the second control circuit; when the radiation shielding cover is in a closed state, the matching piece abuts against the mechanical switch to close the mechanical switch, thereby causing the second control circuit to be conductive; when the radiation shielding cover is in an open state, the matching piece separates from the mechanical switch to disconnect the mechanical switch, thereby breaking the second control circuit.

[0013] Alternatively, the first detection device includes an inductive switch arranged on the radiation shielding box and a triggering member arranged on the radiation shielding cover; when the radiation shielding cover is in a closed state, the triggering member cooperates with the inductive switch to trigger the inductive switch to generate a conduction signal, thereby turning on the second control circuit; when the radiation shielding cover is in an open state, the triggering member separates from the inductive switch to cause the inductive switch to generate a disconnection signal, thereby disconnecting the second control circuit.

[0014] In one embodiment, the first control circuit includes a first electromagnet, and the first switch includes a first movable blade magnetically engaged with the first electromagnet.

[0015] When the first detection device detects that the radiation shielding cover is in the closed state, the first electromagnet is in the energized state and magnetically engages with the first movable blade to disconnect the first switch.

[0016] When the first detection device detects that the radiation shielding cover is in the open state, the first electromagnet is in the power-off state, so that the first movable knife is reset to the initial state, so that the first switch is closed.

[0017] In one embodiment, the second control circuit includes a second electromagnet, and the second switch includes a second movable blade magnetically engaged with the second electromagnet.

[0018] When the second electromagnet is in a power-on state, the second electromagnet and the second movable knife are magnetically engaged to close the second switch.

[0019] When the second electromagnet is in the power-off state, the second movable knife is reset to the initial state to disconnect the second switch.

[0020] In one embodiment, the power control module further includes an electronically controlled switch and a control device capable of controlling the on and off of the electronically controlled switch, and the electronically controlled switch is connected in series with the first switch and the ray excitation circuit.

[0021] In one embodiment, the first detection device includes a plurality of first detection devices, which are spaced apart along the periphery of the radiation shielding cover, and the plurality of first detection devices are arranged in parallel;

[0022] The number of second relays corresponds to the number of first detection devices, and the second control circuit corresponds to the first detection devices and is connected in series; the second switches of the plurality of second relays are connected in parallel in sequence and then in series with the first control circuit.

[0023] The present application also provides an energy spectrum device, comprising a radiation shielding box, a radiation shielding cover, a radiation source, an energy spectrum detector, and the high-voltage controller of any of the above embodiments. The radiation shielding box comprises a radiation shielding cavity and an opening communicating with the radiation shielding cavity, and the radiation shielding cover is movably connected to the radiation shielding box to open or close the opening.

[0024] The radiation source is arranged in the radiation shielding cavity and can generate radiation, and the energy spectrum detector is used to collect energy spectrum information of the mineral. The first switch is connected in series with the radiation excitation circuit, and the radiation excitation circuit supplies power to the radiation source.

[0025] The present application also provides a mineral detection system, comprising a sample preparation device, a data processing device, and the energy spectrum device in any of the above embodiments.

[0026] The radiation source generates radiation that can be directed toward the minerals arranged on the sample preparation device. The data processing device is electrically connected to the power control module and the energy spectrum detector.

[0027] The technical solution is further described below:

[0028] In one embodiment, the energy spectrum device further includes a temperature sensor for detecting the surface temperature of the radiation source, and the temperature sensor is electrically connected to the data processing device.

[0029] And / or, the energy spectrum device further includes a humidity sensor for detecting the ambient humidity of the environment in which the ray transmission optical path is located, and the humidity sensor is electrically connected to the data processing device.

[0030] And / or, the ray source includes an X-ray light source.

[0031] And / or, the energy spectrum equipment also includes a spectrum acquisition component, which includes a near-infrared light source and a spectrum detector electrically connected to the data processing device. The near-infrared light source can generate near-infrared light and emit it to the mineral set on the sample preparation device. The spectrum detector is used to collect spectral information of the mineral.

[0032] And / or, the sample preparation device includes a detection conveyor belt and a pressing roller, wherein the pressing roller is located above the detection conveyor belt and is used to flatten the mineral conveyed on the detection conveyor belt.

[0033] The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

[0034] When this high-voltage controller is implemented in this mineral detection system, a first detection device can detect whether the radiation shielding cover is closing the opening of the radiation shielding chamber. If the radiation shielding cover is not closed due to improper operation or negligence by maintenance personnel, the first detection device can detect that the radiation shielding cover is open and, in conjunction with the second control circuit, control the second switch. This allows the first control circuit to control the first switch to open, disconnecting the radiation excitation circuit and preventing power from being supplied to the radiation source. In this case, even if a command is sent to open the radiation source to generate radiation, the radiation source will not be powered.

[0035] After the operator has verified that the radiation shielding cover is closed, the first detection device detects the cover's closed state and, in conjunction with the second control circuit, controls the second switch, causing the first control circuit to close the first switch, turning the radiation source on at the first switch. At this point, a command is sent to the radiation source to activate and generate radiation, causing it to energize and generate radiation. This ensures that the high-voltage controller disconnects power to the radiation source when the shielding box is open, improving the safety of the mineral detection system.

[0036] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] BRIEF DESCRIPTION OF THE DRAWINGS The drawings constituting a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] Figure 1 Schematic diagram of the structure of a mineral detection system shown in one embodiment.

[0040] Figure 2 for Figure 1 Schematic diagram of the high voltage controller shown (the first switch is in the closed state).

[0041] Figure 3 for Figure 2 The schematic diagram shows that the first switch of the high-voltage controller is in the open state.

[0042] Figure 4 for Figure 2 The structural schematic diagram of the first relay is shown.

[0043] Figure 5 for Figure 2 The structural schematic diagram of the second relay is shown.

[0044] Figure 6 for Figure 2 The schematic diagram of the power control module is shown.

[0045] Figure 7 Schematic diagram of a high-voltage controller shown in one embodiment (the first switch is in a closed state).

[0046] Figure 8 for Figure 7 The schematic diagram shows that some first switches of the high-voltage controller are in the disconnected state.

[0047] Description of reference numerals:

[0048] 10. Mineral detection system; 10a. Energy spectrum equipment; 11. Temperature sensor; 12. Humidity sensor; 13. Temperature control unit; 14. Mylar film; 15. Fan; 16. Spectrum acquisition assembly; 100. Radiation shielding box; 110. Radiation shielding cavity; 120. Opening; 130. First light-transmitting area; 140. Second light-transmitting area; 200. Radiation shielding cover; 300. Radiation source; 400. Energy spectrum detector; 500. Sample preparation device; 510. Detection conveyor belt; 520. Scraper; 530. Press roller; 600. Data processing device; 610. Signal control module; 620. Signal processing module; 700. High-voltage controller; 701. Power control Control module; 710, first relay; 711, first switch; 7111, first movable knife; 712, first control circuit; 7121, first electromagnet; 713, first insulating bracket; 714, first elastic return member; 740, electric control switch; 750, control device; 702, box cover control module; 720, second relay; 721, second switch; 7211, second movable knife; 722, second control circuit; 7221, second electromagnet; 723, second insulating bracket; 724, second elastic return member; 730, first detection device; 731, mechanical switch; 732, matching part; 800, ray excitation circuit; 20, mineral. DETAILED DESCRIPTION

[0049] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0050] If there are terms related to directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, height, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of the present application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0051] In order to better understand the technical solution of this application, the following is an explanation of the technical terms that may be involved in this application:

[0052] Moisture (M). There are two types of moisture in coal: one is intrinsic moisture, which is the moisture contained when plants turn into coal; the other is external water (Mf), which is the moisture attached to the coal surface and cracks during mining and transportation.

[0053] Ash (A) refers to the residue left after coal is completely burned.

[0054] Volatile matter (V) refers to the gaseous and liquid products emitted when coal is heated at high temperatures and in the absence of air. The main components of volatile matter are methane, hydrogen, and other hydrocarbons.

[0055] Fixed carbon content (FC) refers to the residue after removing moisture, ash and volatile matter. It is an important indicator for determining the use of coal.

[0056] Calorific value (Q) refers to the amount of heat generated by the complete combustion of a unit mass of coal. It is mainly divided into high calorific value and low calorific value. The low calorific value is the high calorific value of coal minus the heat of vaporization of water.

[0057] Near-infrared spectroscopy (NIR) coal testing uses near-infrared spectroscopy (NIR) technology to analyze material composition. Different molecular components in a substance absorb different wavelengths of near-infrared light. A light source is used to illuminate the target object, and a spectrometer captures the reflected NIR spectrum. Combined with specific analysis algorithms, this technology allows analysis of specific components within the material.

[0058] NIRs, near infrared spectrum (Near Infrared Spectrum) is an electromagnetic wave between ultraviolet-visible light and mid-near infrared light, with a wavelength range of 700~2500nm (14286~4000cm-1).

[0059] X-ray fluorescence spectroscopy coal testing refers to the analysis of material composition through X-ray fluorescence (XRF) technology: X-rays irradiate the material, and different elements will be stimulated to produce secondary X-ray fluorescence of different energies. By collecting and analyzing the secondary X-rays, the content of each element in the test object can be inferred.

[0060] XRF, X-ray fluorescence, is a method that uses primary X-ray photons or other microscopic ions to excite atoms in coal, causing them to produce fluorescence for material composition analysis and chemical state research.

[0061] Mylar film is a special organic film that has minimal attenuation of X-ray signals and is often used for support or protection in X-ray systems. Ordinary materials significantly attenuate X-rays.

[0062] X-ray inspection technology currently plays a significant role in mineral inspection. Mineral inspection systems utilizing this technology can measure the internal structure of minerals such as coal and iron ore, obtaining relevant inspection data and providing analytical data for mining and structural analysis. For example, as one of the primary fossil fuels for thermal power generation, the efficient and safe use of coal has become crucial amidst increasingly severe global environmental challenges. With growing energy demand and heightened awareness of environmental protection, coal utilization and monitoring needs are gaining increasing attention. Coal quality and composition vary significantly across sources and production processes. These differences directly impact coal's energy efficiency and environmental impact. Coal of varying composition also releases varying gas compositions and solid residues during combustion. Therefore, accurate understanding of coal composition is crucial for assessing its combustion characteristics and environmental impact. Accurate and efficient real-time measurement of coal composition is crucial for optimizing energy utilization, improving production efficiency, and reducing environmental pollution. Real-time monitoring of coal composition allows for timely adjustment of combustion parameters, improving combustion efficiency, and reducing energy waste. Furthermore, understanding the content of elements such as sulfur and nitrogen in coal helps control gaseous pollutant emissions during combustion and mitigate adverse environmental impacts. Therefore, using a mineral detection system to monitor coal composition in real time can not only improve energy utilization efficiency, but also reduce production costs and reduce environmental pollution.

[0063] In the related art, mineral detection systems use radiation sources to emit radiation. Radiation is radioactive and can cause harm to the human body. However, due to the improper design of the high-voltage controller of the radiation source of traditional mineral detection systems, if the radiation shielding box is not closed due to improper operation or negligence of maintenance personnel, the radiation source can still be powered on to emit radiation, which can easily lead to safety accidents. When using this mineral detection system to monitor coal composition in real time, coal needs to be transported continuously, and coal detection cannot be carried out in a closed environment. Therefore, the detection environment of the mineral detection system is usually open and cannot be closed, resulting in a complex personnel passing through the mineral detection system. Although the mineral detection system has strict detection and use requirements and maintenance operating procedures, if the radiation shielding box is not closed due to improper operation or negligence of maintenance personnel, the mineral detection system may leak radiation during the coal detection process, causing radiation radiation, which can easily lead to more serious safety accidents.

[0064] Based on this, the utility model provides a high-voltage controller, an energy spectrum device, and a mineral detection system. The high-voltage controller can ensure that the power supply to the radiation source is disconnected when the protective box is not closed, thereby improving the safety of the mineral detection system.

[0065] In order to better understand the high-pressure controller of the present invention, a mineral detection system using the high-pressure controller is used for illustration.

[0066] like Figure 1 As shown, the present application also provides a mineral detection system 10 for analyzing the composition, characteristics, etc. of minerals 20 such as coal, iron ore, copper ore, lithium ore, etc., and obtaining the composition information of the minerals 20. For example, the composition information of the mineral 20 includes coal composition information. Coal composition information includes but is not limited to industrial composition, elemental composition, calorific value and sulfur content. Among them, industrial composition includes moisture, volatile matter, fixed carbon content and ash content. Elemental composition includes the content of elements such as carbon, hydrogen, oxygen, nitrogen and combustible sulfur in organic matter. In some other embodiments, mixtures such as soil or cement (including organic or inorganic matter) can also be detected, which is not limited in the present application.

[0067] The mineral detection system 10 includes an energy spectrum device 10a for collecting spectral signals of minerals.

[0068] The energy spectrum device 10 a includes a radiation shielding box 100 , a radiation shielding cover 200 , a ray source 300 and an energy spectrum detector. The mineral detection system 10 also includes a sample preparation device 500 and a data processing device 600 .

[0069] Among them, such as Figure 1 As shown, the radiation shielding box 100 includes a radiation shielding cavity 110 and an opening 120 communicating with the radiation shielding cavity 110. The radiation shielding cover 200 is movably connected to the radiation shielding box 100 to open or close the opening 120. The cooperation between the radiation shielding box 100 and the radiation shielding cover 200 effectively prevents radiation leakage. The radiation shielding cover 200 is movably connected to the radiation shielding box 100, facilitating opening 120 for inspection or maintenance of electronic components within the radiation shielding box 100.

[0070] The radiation source 300 is located within the radiation shielding chamber 110 and is capable of generating radiation, which is then directed toward the mineral mounted on the sample preparation device 500. The energy spectrum detector 400 is capable of collecting energy spectrum information of the mineral 20. The data processing device 600 is electrically connected to the energy spectrum detector 400. This allows the sample preparation device 500 to carry the mineral 20 under examination, facilitating the radiation source 300 to emit radiation for examination toward the mineral 20 within the radiation shielding chamber 110. The energy spectrum detector 400 then collects secondary fluorescence generated by the mineral 20 in response to the radiation, facilitating the generation of an energy spectrum. This spectrum is then transmitted to the data processing device 600 for analysis and processing to determine the composition of the mineral 20.

[0071] For example, in an embodiment of the present application, the mineral detection system adopts an online detection method. The sampling device collects mineral samples that meet the requirements, and then the conveying device conveys the mineral samples. The mineral samples are shaped by the sample preparation device, and then the energy spectrum equipment is used to detect the components of the mineral samples. The sampling, conveying, shaping and detection processes are combined. The energy spectrum equipment uses an energy spectrum detector to send the energy spectrum data to the data processing device for combination, and outputs calorific value, total water, sulfur content, ash content, ash melting point, volatile matter, carbon, hydrogen and other values. It can accurately detect multiple components in the mineral sample and realize accurate composition analysis.

[0072] In order to improve the safety of the mineral detection system 10, the energy spectrum device 10a further includes a high voltage controller 700 and a ray excitation circuit 800. Figure 2 as well as Figure 3 As shown, the high-voltage controller 700 includes a power supply control module 701 electrically connected to the data processing device 600 and a cover control module 702. The power supply control module 701 includes a first relay 710, which includes a first switch 711 and a first control circuit 712 for controlling the on / off of the first switch 711. The first switch 711 is connected in series with the radiation excitation circuit 800, which supplies power to the radiation source 300. The cover control module 702 includes a second relay 720 and a first detection device 730 for detecting whether the radiation shielding cover 200 is closed. The second relay 720 includes a second switch 721 and a second control circuit 722 for controlling the on / off of the second switch 721. The second switch 721 is connected in series with the first control circuit 712, and the second control circuit 722 is connected in series with the first detection device 730.

[0073] like Figure 2 As shown, when the first detection device 730 detects that the radiation shielding cover 200 is in the closed state, the first detection device 730 cooperates with the second control circuit 722 to control the second switch 721, so that the first control circuit 712 can control the first switch 711 to be closed, so that the ray excitation circuit 800 is connected to the first switch 711. The ray excitation circuit 800 can provide power to the ray source 300.

[0074] like Figure 3 As shown, when the first detection device 730 detects that the radiation shielding cover 200 is in the open state, the first detection device 730 cooperates with the second control circuit 722 to control the second switch 721, so that the first control circuit 712 can control the first switch 711 to be opened, so that the radiation excitation circuit 800 is disconnected and cannot supply power to the radiation source 300. In other words, the radiation source is in a power-off state.

[0075] After the high-voltage controller 700 is implemented in the mineral detection system 10, the first detection device 730 can detect whether the radiation shielding cover 200 closes the opening 120 of the radiation shielding chamber 110. If the radiation shielding cover 200 does not close the opening 120 due to improper operation or negligence by maintenance personnel, the first detection device 730 can detect that the radiation shielding cover 200 is open and, in conjunction with the second control circuit 722, control the second switch 721, causing the first control circuit 712 to control the first switch 711 to open, thereby disconnecting the radiation excitation circuit 800 and de-energizing the radiation source 300. In this case, even if a command is sent to control the radiation source 300 to open and generate radiation, the radiation source 300 will not be powered.

[0076] After the operator has verified that the radiation shielding cover 200 has closed the opening 120, the first detection device 730 detects that the radiation shielding cover 200 is closed and, in conjunction with the second control circuit 722, controls the second switch 721, causing the first control circuit 712 to control the first switch 711 to close, thereby turning the radiation source 300 on at the first switch 711. At this point, the data processing module or other input module sends a command to control the radiation source 300 to turn on and generate radiation, causing the radiation source 300 to be powered on and generate radiation. This ensures that the high-voltage controller 700 disconnects power to the radiation source 300 even when the protective box is open, improving the safety of the mineral detection system 10.

[0077] It should be noted that the ray excitation circuit 800 provides the ray source with a voltage greater than 220 V. "High voltage" includes a voltage greater than 220 V, such as 380 V.

[0078] It should be noted that the type of radiation emitted by radiation source 300 can be flexibly selected based on the type of mineral 20 and detection requirements. For example, when mineral 20 is coal, radiation source 300 can emit X-rays, and energy spectrum detector 400 collects secondary X-ray fluorescence generated by the coal in response to primary X-ray excitation, processes the secondary X-ray fluorescence, and obtains an energy spectrum of the secondary X-ray fluorescence.

[0079] In some embodiments, the energy spectrum detector 400 includes a collector for collecting secondary X-ray fluorescence generated by coal excited by primary X-rays, and an energy spectrum processor connected to the collector. The energy spectrum processor is configured to process the secondary X-ray fluorescence to obtain an energy spectrum of the secondary X-ray fluorescence. The energy spectrum processor is connected to a data processing device.

[0080] The ray source includes an X-ray light source.

[0081] In addition, the specific structure of the radiation source can be various, as long as it can generate the radiation required for mineral detection, including but not limited to a radiation tube.

[0082] It should be noted that the movable connection between the radiation shielding cover 200 and the radiation shielding box 100 includes a detachable connection and a rotating connection.

[0083] The radiation shielding cover 200 and the radiation shielding box 100 are made of materials having radiation protection function, such as metal.

[0084] It should be noted that the specific structures of the first relay 710 and the second relay 720 can be various and are not limited here.

[0085] For example, when the second relay 720 is a normally open relay, when the first detection device 730 detects that the radiation shielding cover 200 is in the closed state, the first detection device 730 cooperates with the second control circuit 722 to control the second switch 721 to be closed, so that the first control circuit 712 can control the first switch 711 to be closed, thereby electrically connecting the radiation excitation circuit 800 to the power control module 701 through the first switch 711. When the first detection device 730 detects that the radiation shielding cover 200 is in the open state, the first detection device 730 cooperates with the second control circuit 722 to control the second switch 721 to be open, so that the first control circuit 712 can control the first switch 711 to be opened, thereby disconnecting the radiation excitation circuit 800 and causing the radiation source 300 to be powered off.

[0086] For another example, when the second relay 720 is a normally closed relay, when the first detection device 730 detects that the radiation shielding cover 200 is in the closed state, the first detection device 730 cooperates with the second control circuit 722 to control the second switch 721 to open, so that the first control circuit 712 can control the first switch 711 to close, thereby electrically connecting the radiation excitation circuit 800 to the power control module 701 through the first switch 711. When the first detection device 730 detects that the radiation shielding cover 200 is in the open state, the first detection device 730 cooperates with the second control circuit 722 to control the second switch 721 to close, so that the first control circuit 712 can control the first switch 711 to open, thereby disconnecting the radiation excitation circuit 800 and causing the radiation source 300 to be powered off.

[0087] It should be noted that there can be many specific implementation methods of the first detection device 730, including but not limited to inductive switches, capacitive switches, photoelectric switches, magnetic induction switches and other inductive switches, button switches, lever switches, toggle switches, sliding switches, magnetically controlled switches, micro switches and other mechanical switches 731, as well as machine vision detectors and other detection devices that can detect whether the radiation shielding cover 200 is in a closed state.

[0088] like Figure 2 as well as Figure 3As shown, in some embodiments, when the radiation shielding cover 200 is closed, the first detection device 730 is in an on state, thereby turning on the second control circuit 722 and controlling the second switch 721 to be off, thus disconnecting the first control circuit 712 and closing the first switch 711. When the radiation shielding cover 200 is open, the first detection device 730 is in an off state, thereby disconnecting the second control circuit 722 and controlling the second switch 721 to be closed, thus turning on the first control circuit 712 and disconnecting the first switch 711, thereby disconnecting the radiation excitation circuit 800. In this way, the first detection device 730 can form a conductive path when the radiation shielding cover 200 is closed, thereby turning on the second control circuit 722 and facilitating the disconnection of the second switch 721. When the second switch 721 is disconnected, the first control circuit 712 is also disconnected, thereby closing the first switch 711. When the radiation shielding cover 200 is opened, the first detection device 730 can be disconnected, disconnecting the second control circuit 722. The second switch 721 is then reset to a closed state. This closing of the second switch 721 also connects the first control circuit 712, thereby opening the first switch 711 and disconnecting the radiation excitation circuit 800, thereby powering off the radiation source 300.

[0089] Optionally, in some embodiments, the first detection device 730 includes a mechanical switch 731 disposed on the radiation shielding box 100 and a mating member 732 disposed on the radiation shielding cover 200. The mechanical switch 731 is connected in series with the second control circuit 722. When the radiation shielding cover 200 is closed, the mating member 732 abuts the mechanical switch 731, closing the mechanical switch 731 and thus conducting the second control circuit 722. When the radiation shielding cover 200 is open, the mating member 732 separates from the mechanical switch 731, opening the mechanical switch 731 and disconnecting the second control circuit 722. In this manner, when the radiation shielding cover 200 is closed, the mating member 732 abuts the mechanical switch 731, closing the mechanical switch 731 and disconnecting the second control circuit 722. This allows the first detection device 730 to be connected in series with the second control circuit 722 when the radiation shielding cover 200 is closed, facilitating control of the disconnection of the second switch 721. When the second switch 721 is disconnected, the first control circuit 712 is also disconnected, thereby closing the first switch 711. When the radiation shielding cover 200 is open, the first detection device 730 can separate the mating member 732 from the mechanical switch 731, disconnecting the mechanical switch 731 and thus breaking the second control circuit 722. The second switch 721 then resets to a closed state. This closure of the second switch 721 also connects the first control circuit 712, thereby opening the first switch 711 and disconnecting the radiation excitation circuit 800, thereby de-energizing the radiation source 300. Connecting the mechanical switch 731 in series with the second control circuit 722 reduces electronic components and improves the reliability of the linkage control of the cover control module 702.

[0090] It will be appreciated that in the above embodiment, the second relay 720 is a normally closed relay. That is, the second switch 721 is in a normally closed state. If the first detection device 730 is damaged, the second control circuit 722 will remain in an open state, allowing the first control circuit 712 to connect to the power supply via the second switch 721. This, in turn, controls the second switch 721 to remain open, preventing the radiation source 300 from being energized. This ensures that the radiation shielding cover 200 closes the opening 120 and the lid control module 702 is functioning properly before the radiation source 300 can be activated, facilitating prompting maintenance personnel to perform repairs promptly. This prevents safety incidents caused by the radiation source 300 being energized due to a failure of the lid control module 702.

[0091] In other embodiments, when the first detection device 730 detects that the radiation shielding cover 200 is in the closed state, the first detection device 730 can generate a turn-on signal to turn on the second control circuit 722. When the radiation shielding cover 200 is in the open state, the first detection device 730 can generate a turn-off signal to turn off the second control circuit 722. In this way, the first detection device 730 can generate a turn-on signal (e.g., a first electrical signal) when the radiation shielding cover 200 is in the closed state, and can generate a turn-off signal (e.g., a second electrical signal different from the first electrical signal) when the radiation shielding cover 200 is in the open state. This facilitates turning on or off the second control circuit 722 through different signals, thereby achieving on / off control of the second switch 721.

[0092] Optionally, in some embodiments, the first detection device 730 includes a sensor switch (not shown) disposed on the radiation shielding box 100 and a trigger (not shown) disposed on the radiation shielding cover 200. When the radiation shielding cover 200 is in the closed state, the trigger cooperates with the sensor switch to trigger the sensor switch, causing it to generate an on signal, thereby turning on the second control circuit 722. When the radiation shielding cover 200 is in the open state, the trigger separates from the sensor switch, causing it to generate an off signal, thereby disconnecting the second control circuit 722. In this manner, the sensor switch and the trigger cooperate to determine whether the radiation shielding cover 200 is in the closed state. When the radiation shielding cover 200 is in the closed state, the trigger cooperates with the sensor switch to trigger the sensor switch to generate an on signal, and the power control module 701 controls the second control circuit 722 to turn on based on the on signal. When the radiation shielding cover 200 is in the open state, the trigger separates from the sensor switch, causing it to generate an off signal, and the power control module 701 controls the second control circuit 722 to turn on based on the on signal.

[0093] like Figure 4As shown, in some embodiments, the first control circuit 712 includes a first electromagnet 7121, and the first switch 711 includes a first movable blade 7111 that magnetically engages with the first electromagnet 7121. When the first detection device 730 detects that the radiation shielding cover 200 is closed, the first electromagnet 7121 is energized and magnetically engages with the first movable blade 7111, thereby opening the first switch 711. When the first detection device 730 detects that the radiation shielding cover 200 is open, the first electromagnet 7121 is de-energized, resetting the first movable blade 7111 to its initial state and closing the first switch 711. Thus, when the first control circuit 712 is in the on state, the first electromagnet 7121 is energized to generate a magnetic attraction force, magnetically engaging with the first movable blade 7111, thereby opening the first switch 711. When the first control circuit 712 is in the off state, the first electromagnet 7121 is de-energized and cannot generate a magnetic attraction force. At this time, the restoring force of the first movable blade 7111 is restored to the initial state, so that the first switch 711 is closed. The first electromagnet 7121 cooperates with the first movable blade 7111 to easily realize the on-off control of the first switch 711.

[0094] Optionally, in some embodiments, the first relay 710 includes a first insulating bracket 713 and a first elastic return member 714 disposed on the first insulating bracket 713. The first movable blade 7111 is swingably disposed on the first insulating bracket 713. One end of the first movable blade 7111 is insulatedly connected to the first elastic return member 714 so that the first movable blade 7111 can elastically return to its initial state. The other end of the first movable blade 7111 is magnetically engaged with the first electromagnet 7121. In this way, the first insulating bracket 713 is used to support the first movable blade 7111 and the first elastic return member 714, so that the first movable blade 7111 can elastically return to its initial state and easily engage with the first electromagnet 7121.

[0095] like Figure 5As shown, in some embodiments, the second control circuit 722 includes a second electromagnet 7221, and the second switch 721 includes a second movable blade 7211 that magnetically engages with the second electromagnet 7221. When the second electromagnet 7221 is energized, the second electromagnet 7221 magnetically engages with the second movable blade 7211, closing the second switch 721. When the second electromagnet 7221 is de-energized, the second movable blade 7211 resets to its initial state, opening the second switch 721. Thus, when the second control circuit 722 is in the on state, the second electromagnet 7221 is energized to generate a magnetic attraction force, which magnetically engages with the second movable blade 7211, opening the second switch 721. When the second control circuit 722 is in the off state, the second electromagnet 7221 is de-energized and cannot generate a magnetic attraction force. At this point, the reset force of the second movable blade 7211 is reset to its initial state, closing the second switch 721. By using the second electromagnet 7221 in conjunction with the second movable knife 7211 , the on-off control of the second switch 721 can be easily achieved.

[0096] Optionally, in some embodiments, the second relay 720 includes a second insulating bracket 723 and a second elastic return member 724 disposed on the second insulating bracket 723. The second movable blade 7211 is swingably disposed on the second insulating bracket 723. One end of the second movable blade 7211 is insulatedly connected to the second elastic return member 724 to enable the second movable blade 7211 to elastically return to its initial state. The other end of the second movable blade 7211 is magnetically engaged with the second electromagnet 7221. In this manner, the second insulating bracket 723 is used to support the second movable blade 7211 and the second elastic return member 724, allowing the second movable blade 7211 to elastically return to its initial state and facilitate engagement with the second electromagnet 7221.

[0097] The first elastic reset member 714 and / or the second elastic reset member 724 include elastic members capable of elastic reset, such as a spring, a torsion spring, a spring sheet, and an elastic adhesive.

[0098] like Figure 6As shown, in some embodiments, the power control module 701 further includes an electrically controlled switch 740 and a control device 750 capable of controlling the on / off switching of the electrically controlled switch 740. The electrically controlled switch 740 is connected in series with the first switch 711 and the radiation source 300. This facilitates communication between the control device 750 and the input module or data processing device 600 used to control the activation or deactivation of the radiation source 300. This facilitates controlling the on / off switching of the electrically controlled switch 740 according to control instructions, thereby activating or deactivating the radiation source 300. When the radiation shielding cover 200 is open, the first switch 711 is open, preventing the radiation source 300 from being activated using the electrically controlled switch 740. When the radiation shielding cover 200 is closed, the first switch 711 is closed, enabling the radiation source 300 to be activated or deactivated by the on / off switching of the electrically controlled switch 740. This ensures that the radiation source 300 can only be activated after the radiation shielding cover 200 is securely closed, enhancing the safety of the mineral detection system 10.

[0099] It should be noted that the electric control switch 740 includes an electromagnetic switch, etc. The control device 750 includes a micro control unit (MUC), etc.

[0100] In still other embodiments, the radiation source 300 can receive control instructions and be turned on or off according to the control instructions.

[0101] like Figure 7 as well as Figure 8 As shown, in some embodiments, multiple first detection devices 730 are provided, spaced apart along the perimeter of the radiation shielding cover 200, with the multiple first detection devices 730 arranged in parallel. The number of second relays 720 corresponds one-to-one to the number of first detection devices 730, and the second control circuit 722 corresponds one-to-one to the first detection devices 730 and is connected in series. The second switches 721 of the multiple second relays 720 are sequentially connected in parallel and then connected in series with the first control circuit 712. In this manner, the multiple first detection devices 730 are spaced apart around the radiation shielding cover 200. Only after the radiation shielding cover 200 has closed the opening 120 as required will the multiple second switches 721 be opened, causing the first control circuit 712 to also be in an open state, thereby closing the first switch 711 and connecting the radiation excitation circuit 800 to the high-voltage power supply via the first switch 711, providing high-voltage power to the radiation source 300. When a first detection device 730 detects that the radiation shielding cover 200 is not closed properly in this position, the second switch 721 corresponding to the first detection device 730 will be closed, so that the first control circuit 712 is powered on and the first switch 711 is opened, thereby disconnecting the ray excitation circuit 800 and causing the ray source 300 to be powered off.

[0102] A plurality includes more than two, for example, two, three, four, five, six, etc.

[0103] like Figure 7 As shown, in one example, both the first relay 710 and the second relay 720 are normally closed relays. Four first detection devices 730 are provided, spaced apart along the perimeter of the radiation shielding cover 200. The four first detection devices 730 are connected in parallel, namely S1, S2, S3, and S4. The number of second relays 720 corresponds one-to-one to the number of first detection devices 730, namely K1, K2, K3, and K4. The second control circuit 722 corresponds one-to-one to each first detection device 730 and is connected in series. The second switches 721 of the multiple second relays 720 are connected in parallel and then in series with the first control circuit 712. In this way, the four first detection devices 730 are arranged at intervals around the radiation shielding cover 200 to ensure that the radiation shielding cover 200 closes the opening 120 in accordance with the requirements. Only after S1, S2, S3 and S4 are closed, K1, K2, K3 and K4 are disconnected, so that the first control circuit 712 is also in an open circuit state, and then the first switch 711 is closed, so that the radiation source 300 is connected to the power control module 701 through the first switch 711.

[0104] And as Figure 8 As shown, if the radiation shielding cover 200 is not closed properly at S2, S2 will be disconnected, causing the second control circuit 722 to be disconnected, and then the second switch 721 where K2 is located to be closed, so that the first control circuit 712 is energized and turned on, causing the first switch 711 to open, and then the ray excitation circuit 800 to be disconnected, causing the ray source 300 to be powered off.

[0105] See you later Figure 1 As shown, in some embodiments, the data processing device 600 includes a signal control module 610 and a signal processing module 620. The signal control module 610 controls the acquisition and transmission of signals, and transmits the acquired energy spectrum signal and correction information to the signal processing module 620 for analysis and processing.

[0106] The signal processing module 620 includes a computing device such as a computer.

[0107] In an embodiment of the present application, the mineral detection system adopts an online detection method. The sampling device collects mineral samples that meet the requirements, and then the conveying device conveys the mineral samples. The mineral samples are shaped by the sample preparation device, and then the energy spectrum equipment is used to detect the composition of the mineral samples. The sampling, conveying, shaping and detection processes are combined. The energy spectrum equipment uses an energy spectrum detector to send the energy spectrum data to the signal processing module for combination, and outputs calorific value, total water, sulfur content, ash content, ash melting point, volatile matter, carbon, hydrogen and other values. It can accurately detect multiple components in the mineral sample and realize accurate composition analysis.

[0108] like Figure 1 As shown, in some embodiments, the sample preparation device 500 includes a detection conveyor belt 510 for conveying the mineral 20 .

[0109] Because the coal placed on the inspection conveyor belt 510 has varying particle sizes and heights, multiple pieces of coal can be inspected simultaneously. However, the flatness of the multiple pieces of coal may affect the inspection results. In some embodiments, the sample preparation device 500 also includes a scraper 520. Thus, before inspecting the multiple pieces of coal placed on the inspection conveyor belt 510, the boat-shaped or sled-shaped scraper 520 can be used to flatten the coal before inspection, thereby reducing the height differences among the multiple pieces of coal and improving their overall flatness.

[0110] Furthermore, in some embodiments, the sample preparation device 500 also includes a press roller 530. Thus, before testing the multiple coal particles placed on the testing conveyor belt 510, the coal can be flattened using a boat-shaped or sled-shaped scraper 520 to reduce height differences among the coal particles and improve their overall flatness. The press roller 530 then flattens the coal particles, improving their flatness and reducing variations in the signals collected by the energy spectrum detector 400, thereby increasing the accuracy of the collected signals.

[0111] In some other embodiments, the sample preparation device 500 includes a pressing roller 530. Thus, before testing the plurality of coal particles placed on the testing conveyor belt 510, the pressing roller 530 is used to flatten the coal particles, thereby improving the flatness and reducing the variance of the signals collected by the energy spectrum detector 400, thereby making the collected signals more accurate.

[0112] While the coal maintains a good degree of flatness after flattening pretreatment, its overall height is unknown, and coal of varying heights may cause differences in the collected signal. In some embodiments, a rangefinder can be used to determine the distance between the coal surface and the energy spectrum detector 400 before testing the coal. The data processing device 600 can also compensate for the intensity of the signal collected by the energy spectrum detector 400 based on the corresponding distance value. This minimizes the effect of coal height differences on the signal collected by the energy spectrum detector 400.

[0113] like Figure 1 As shown, in some embodiments, the mineral detection system 10 further includes at least one of the following:

[0114] The temperature sensor 11 is used to detect the surface temperature of the radiation source 300 . The temperature sensor 11 is electrically connected to the data processing device 600 .

[0115] A humidity sensor 12 is used to detect the humidity of the environment in which the ray transmission optical path is located. The humidity sensor 12 is electrically connected to the data processing device 600 .

[0116] The temperature control unit 13 is used to control the ambient temperature in the detection chamber to prevent the internal temperature of the device from being too high.

[0117] The Mylar film 14 allows the radiation emitted by the radiation source 300 to pass through the Mylar film 14 and reach the surface of the mineral 20 to be tested. The generated radiation fluorescence and scattered light are detected by the energy spectrum collector after passing through the Mylar film 14, and an energy spectrum signal is generated by the energy spectrum processor.

[0118] The fan 15 can blow on the surface of the Mylar film 14 to prevent condensation on the surface of the Mylar film 14 from affecting the energy spectrum signal.

[0119] A heat dissipation assembly (not shown) is disposed near the radiation source 300 and is used to cool the radiation source 300. In this embodiment, the heat dissipation assembly may be a fan 15. In other embodiments, the heat dissipation assembly may also be other heat dissipation components such as heat dissipation fins and a water-cooled heat sink.

[0120] The spectrum acquisition component 16 includes a near-infrared light source (not shown) and a spectrum detector (not shown) electrically connected to the data processing device. The near-infrared light source can generate near-infrared light and emit it to the minerals set on the sample preparation device. The spectrum detector is used to collect spectral information of the minerals. For example, in an embodiment of the present application, the mineral detection system adopts an online detection method. The energy spectrum device collects mineral samples that meet the requirements, and then the conveying device conveys the mineral samples. After the mineral samples are shaped by the sample preparation device, the energy spectrum device is used to detect the components of the mineral samples. The sampling, conveying, shaping and detection processes are integrated. The energy spectrum device combines the energy spectrum detector and the spectrum acquisition component to combine the spectral data with the energy spectrum data, and outputs the calorific value, total water, sulfur content, ash content, ash melting point, volatile matter, carbon, hydrogen and other values, which is more conducive to accurately detecting multiple components in the mineral samples and realizing accurate component analysis.

[0121] In some embodiments, a near-infrared light source and a spectral detector are disposed above a first opening of the energy spectrum device facing the detection conveyor belt to collect spectral information of the mineral.

[0122] Optionally, in some embodiments, the spectrum acquisition assembly 16 and the energy spectrum detector 400 are disposed within the radiation shielding chamber 110. The radiation shielding box 100 includes a first light-transmitting area 130 for transmitting radiation and a second light-transmitting area 140 for transmitting near-infrared light. The first light-transmitting area 130 and the second light-transmitting area 140 are disposed above the detection conveyor belt 510 and are spaced apart along the conveying direction of the detection conveyor belt 510.

[0123] The specific structures of the first light-transmitting area and the second light-transmitting area include various types, such as light-transmitting holes.

[0124] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. A high voltage controller for controlling the on and off of a radiation excitation circuit of a radiation source, characterized in that: include: A power control module includes a first relay, the first relay includes a first switch and a first control circuit for controlling the on and off of the first switch, and the first switch can be connected in series with the ray excitation circuit; as well as A cover control module includes a second relay and a first detection device for detecting whether the radiation shielding cover is in a closed state, the second relay includes a second switch and a second control circuit for controlling the on and off of the second switch, the second switch is connected in series with the first control circuit, and the second control circuit is connected in series with the first detection device; When the first detection device detects that the radiation shielding cover is in the closed state, the first detection device cooperates with the second control circuit to control the second switch, so that the first control circuit can control the first switch to be closed, so that the radiation excitation circuit is connected to the first switch; When the first detection device detects that the radiation shielding cover is in the open state, the first detection device cooperates with the second control circuit to control the second switch, so that the first control circuit can control the first switch to be disconnected, so that the ray excitation circuit is disconnected.

2. The high voltage controller according to claim 1, characterized in that: When the first detection device detects that the radiation shielding cover is in a closed state, the first detection device can generate a conduction signal to turn on the second control circuit; When the radiation shielding cover is in the open state, the first detection device can generate a disconnection signal to disconnect the second control circuit.

3. The high voltage controller according to claim 1, characterized in that: When the radiation shielding cover is in the closed state, the first detection device is in the on state, so as to turn on the second control circuit and control the second switch to be off, so as to disconnect the first control circuit and control the first switch to be closed; When the radiation shielding cover is in the open state, the first detection device is in the disconnected state, so that the second control circuit is disconnected, and the second switch is controlled to be closed, so that the first control circuit is turned on, and the first switch is controlled to be disconnected, so that the ray excitation circuit can be disconnected.

4. The high voltage controller according to claim 1, characterized in that: The first detection device includes a mechanical switch provided on the radiation shielding box and a matching piece provided on the radiation shielding cover, wherein the mechanical switch is connected in series with the second control circuit; when the radiation shielding cover is in a closed state, the matching piece abuts against the mechanical switch to close the mechanical switch, thereby conducting the second control circuit; when the radiation shielding cover is in an open state, the matching piece separates from the mechanical switch to open the mechanical switch, thereby disconnecting the second control circuit; Alternatively, the first detection device includes an inductive switch arranged on the radiation shielding box and a triggering member arranged on the radiation shielding cover; when the radiation shielding cover is in a closed state, the triggering member cooperates with the inductive switch to trigger the inductive switch to generate a conduction signal, thereby turning on the second control circuit; when the radiation shielding cover is in an open state, the triggering member separates from the inductive switch to cause the inductive switch to generate a disconnection signal, thereby disconnecting the second control circuit.

5. The high voltage controller according to claim 1, characterized in that: The first control circuit includes a first electromagnet, and the first switch includes a first movable blade magnetically engaged with the first electromagnet; When the first detection device detects that the radiation shielding cover is in the closed state, the first electromagnet is energized and magnetically engaged with the first movable blade to disconnect the first switch; When the first detection device detects that the radiation shielding cover is in the open state, the first electromagnet is in the power-off state, so that the first movable knife is reset to the initial state, so that the first switch is closed.

6. The high voltage controller according to claim 1, characterized in that: The second control circuit includes a second electromagnet, and the second switch includes a second movable blade magnetically engaged with the second electromagnet; When the second electromagnet is in an energized state, the second electromagnet and the second movable knife are magnetically engaged to close the second switch; When the second electromagnet is in a power-off state, the second movable knife is reset to an initial state, so that the second switch is turned off.

7. The high voltage controller according to claim 1, characterized in that: The power control module further includes an electric-controlled switch and a control device capable of controlling the on and off of the electric-controlled switch. The electric-controlled switch is connected in series with the first switch and the ray excitation circuit.

8. The high voltage controller according to any one of claims 1 to 7, characterized in that: The first detection devices include a plurality of first detection devices, which are arranged at intervals along the four sides of the radiation shielding cover, and the plurality of first detection devices are arranged in parallel; The number of the second relays corresponds to the number of the first detection devices, and the second control circuit corresponds to the first detection devices and is connected in series; the second switches of the plurality of second relays are connected in parallel in sequence and then connected in series with the first control circuit.

9. An energy spectrum device, characterized in that: It comprises a radiation shielding box, a radiation shielding cover, a radiation source, an energy spectrum detector, a radiation excitation circuit and the high-voltage controller according to any one of claims 1 to 8; The radiation shielding box is provided with a radiation shielding cavity and an opening communicating with the radiation shielding cavity, and the radiation shielding cover is movably connected to the radiation shielding box to open or close the opening; The ray source is arranged in the radiation shielding cavity and can generate rays. The energy spectrum detector is used to collect energy spectrum information of minerals. The first switch is connected in series with the ray excitation circuit, and the ray excitation circuit supplies power to the ray source.

10. A mineral detection system, characterized in that: comprising a sample preparation device, a data processing device, and the energy spectrum device according to claim 9; The radiation generated by the radiation source can be directed toward the minerals disposed on the sample preparation device. The data processing device is electrically connected to the power control module and the energy spectrum detector.

11. The mineral detection system according to claim 10, characterized in that: The energy spectrum device further includes a temperature sensor for detecting the surface temperature of the ray source, wherein the temperature sensor is electrically connected to the data processing device; And / or, the energy spectrum device further includes a humidity sensor for detecting the ambient humidity of the environment in which the ray transmission optical path is located, and the humidity sensor is electrically connected to the data processing device; And / or, the ray source includes an X-ray light source; And / or, the energy spectrum device further includes a spectrum acquisition component, the spectrum acquisition component including: a near-infrared light source and a spectrum detector electrically connected to the data processing device, the near-infrared light source can generate near-infrared light and emit it toward the mineral disposed on the sample preparation device, and the spectrum detector is used to collect spectral information of the mineral; And / or, the sample preparation device includes a detection conveyor belt and a pressure roller, and the pressure roller is located above the detection conveyor belt and is used to flatten the minerals conveyed on the detection conveyor belt.

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