Mineral detection equipment

Abstract

The utility model discloses mineral detection equipment, and belongs to the technical field of mineral detection. The mineral detection equipment comprises a conveying device and an online detection device, the conveying device is used for conveying to-be-detected minerals, the online detection device is used for detecting the to-be-detected minerals conveyed by the conveying device, and the conveying device and the online detection device are arranged adjacently. The on-line detection device comprises a microwave detection module, a near-infrared light detection module and an X-ray fluorescence detection module which are arranged at intervals, and the microwave detection module and the near-infrared light detection module are used for detecting the moisture content in the mineral to be detected; the X-ray fluorescence detection module, the microwave detection module and the near-infrared light detection module are combined to detect and analyze various components in the mineral to be detected. According to the arrangement, the X-ray fluorescence spectrum and the near-infrared spectrum are fused to obtain richer characteristic spectrum, and microwave and near-infrared light are combined, so that the water measurement precision is improved, and the detection precision of to-be-detected minerals is favorably improved.

Description

Technical Field

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

[0002] Industrial applications in the mineral industry, such as coal, often require the use of mineral testing equipment to verify the quality of the minerals, ensuring that only those that meet quality requirements are put into use. However, existing technologies require laboratory analysis of the minerals to be tested, which is time-consuming. Other online testing equipment only has limited detection parameters and low accuracy. The market demand for high-precision online mineral analysis and testing technology is growing. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a mineral detection device that can solve the problem of low detection accuracy of mineral detection devices in related technologies.

[0004] The embodiment of the present application provides a mineral detection device, including a conveying device and an online detection device, wherein the conveying device is used to convey the mineral to be detected, and the online detection device is used to detect the mineral to be detected conveyed by the conveying device, and the conveying device and the online detection device are arranged adjacent to each other.

[0005] The online detection device includes a microwave detection module, a near-infrared light detection module and an X-ray fluorescence detection module arranged at intervals. The microwave detection module and the near-infrared light detection module are used to detect the moisture content in the mineral to be detected. The X-ray fluorescence detection module, the microwave detection module and the near-infrared light detection module are combined to detect and analyze multiple components in the mineral to be detected.

[0006] In an embodiment of the present application, the mineral detection equipment is equipped with a microwave detection module, a near-infrared light detection module, and an X-ray fluorescence detection module. The near-infrared light detection module uses the principle of near-infrared light to obtain a near-infrared spectrum through the diffuse reflection of near-infrared light from the surface of the mineral to be detected, detecting the molecular spectra containing C, H, O, and N functional groups in the mineral to be detected, and thus the moisture content of the mineral to be detected. The microwave detection module can also detect the moisture content of the mineral to be detected using the microwave principle. Since microwaves can penetrate the mineral to be detected, the use of microwaves can accurately measure moisture. Therefore, the microwave detection module and the near-infrared light detector are combined to improve the accuracy of water measurement. The X-ray fluorescence detection module uses radiation to accurately measure the atomic spectra of Si, Al, Ca, Fe, K, S, etc. in the mineral to be detected. The combination of microwaves, X-ray spectroscopy, and near-infrared spectroscopy can obtain richer characteristic spectra and information, and more accurately detect parameters such as calorific value, total water, total sulfur, and ash content in the mineral to be detected. Therefore, the combination of microwave detection module, near-infrared light detection module and X-ray fluorescence detection module makes the detection of the mineral to be detected no longer single. It can detect and analyze multiple components in the mineral to be detected, which is beneficial to improve the detection accuracy of the mineral to be detected.

[0007] Optionally, the microwave detection module, the near-infrared light detection module and the X-ray fluorescence detection module are arranged at intervals along the conveying direction of the conveying device.

[0008] With this arrangement, the microwave detection module, the near-infrared light detection module, and the X-ray fluorescence detection module are at equal distances from the mineral to be detected, which facilitates the installation of the three in sequence along the conveying direction. It is also beneficial for the microwave emitting end of the microwave detection module, the near-infrared light emitting end of the near-infrared light detection module, and the ray emitting end of the X-ray fluorescence detection module to be directly directed toward the conveying device so as to accurately emit light toward the mineral to be detected, thereby facilitating accurate detection.

[0009] Optionally, the microwave detection module is a transmission-type microwave detection module, which includes a microwave generator and a microwave receiver that are relatively arranged. The microwave generator and the microwave receiver are respectively located on both sides of the conveying device. The microwave generator is used to emit microwaves to the mineral to be detected, and the microwave receiver is used to receive the microwaves that penetrate the mineral to be detected.

[0010] Such an arrangement and the use of a transmission-type microwave detection module are beneficial to improving measurement accuracy, sensitivity and reliability.

[0011] Optionally, the microwave detection module is a reflective microwave detection module, which includes a microwave generator and a microwave receiver. The microwave generator and the microwave receiver are located on the same side of the conveying device. The microwave generator is used to transmit microwaves to the mineral to be detected, and the microwave receiver is used to receive the microwaves reflected by the mineral to be detected.

[0012] Such a setting and the use of reflective microwave detection module are beneficial to improving measurement accuracy, sensitivity and reliability

[0013] Optionally, the X-ray fluorescence detection module includes an X-ray generator and an X-ray detector arranged in sequence, the X-ray generator is used to emit X-rays to the mineral to be detected, and the X-ray detector is used to detect fluorescence information generated after the mineral to be detected is excited by the X-rays, and the element information in the mineral to be detected is fed back through the fluorescence information.

[0014] With this setting, the use of X-rays is more convenient. Moreover, the fluorescence line intensity and backscattering intensity of Si and Ca in the X-ray spectrum are well correlated with the ash content. Therefore, through the X-ray spectrum, elements such as Na, K, Si, Al, Ca, Mg, Zn, Fe, and Mn can be accurately detected, and the element information in the mineral to be detected can be accurately fed back.

[0015] Optionally, the mineral detection equipment further includes a rectifying device, and the rectifying device is used to rectify the mineral to be detected.

[0016] With this arrangement, the mineral detection equipment is equipped with a rectifier, which is used to rectify the mineral to be detected, thereby improving the density, stability and flatness of the mineral to be detected, which is beneficial to improving the detection accuracy of the online detection device.

[0017] Optionally, in the conveying direction of the conveying device, the rectifying device is located upstream of the online detection device.

[0018] With this arrangement, since the rectifier device is located upstream of the online detection device, the mineral to be detected is first rectified by the rectifier device and then passes through the detection process of the online detection device. Therefore, the online detection device detects the mineral to be detected in a regular state, which is beneficial to improving the detection accuracy.

[0019] Optionally, the rectifying device includes a rectifying member, and the rectifying member is provided with a rectifying surface for flattening the mineral to be detected.

[0020] With such an arrangement, the rectifying surface of the rectifying element is used to flatten the mineral to be detected, so the contact area between the rectifying element and the mineral to be detected is larger, which is more conducive to the rectifying element flattening the mineral to be detected and improving the rectification effect.

[0021] Optionally, the rectifying device includes a support member and a pressure roller, wherein the pressure roller is rotatably disposed on the support member and is used to contact the mineral to be detected so as to flatten the mineral to be detected.

[0022] With this arrangement, the rolling process of the pressure roller is used to flatten the mineral to be tested. There is rolling friction between the pressure roller and the mineral to be tested, which reduces the friction between the rectifier and the mineral to be tested, facilitates the rectifier to smoothly flatten the mineral to be tested, and improves the rectification effect.

[0023] Optionally, the number of the pressing rollers is at least two, the pressing rollers are arranged at intervals along the conveying direction of the conveying device, and the height of each pressing roller decreases in the conveying direction.

[0024] With this arrangement, the number of pressing rollers increases, and any position of the mineral to be tested undergoes the flattening process of at least two pressing rollers. The height of each pressing roller is different, so the mineral to be tested can reach the required compression ratio through step-by-step rolling, which is more conducive to making the mineral to be tested more flat and improving the rectification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a mineral detection device disclosed in one embodiment of the present application;

[0026] Figure 2 is a structural schematic diagram of a mineral detection device disclosed in another embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the coordination between the rectifying device and the conveying device disclosed in one embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the coordination between the rectifying device and the conveying device disclosed in another embodiment of the present application;

[0029] Figure 5 It is a structural schematic diagram of the rectifying device and the conveying device disclosed in the embodiment of the present application.

[0030] Description of reference numerals:

[0031] 100-Conveying device,

[0032] 200-rectifier, 210-rectifier, 220-support, 221-pressing roller, 222-bearing, 230-drive device, 240-transmission assembly, 241-transmission chain, 242-transmission wheel,

[0033] 300-online detection device, 310-microwave detection module, 311-microwave generator, 312-microwave receiver, 320-near infrared light detection module, 330-X-ray fluorescence detection module, 331-X-ray generator, 332-X-ray detector,

[0034] 400-Minerals to be tested,

[0035] A-Conveying direction. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0037] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0038] The mineral detection equipment provided in the embodiments of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0039] Please refer to Figure 1-Figure 5 The mineral detection equipment disclosed in the embodiment of the present application includes a conveying device 100 and an online detection device 300. The conveying device 100 is used to convey a mineral 400 to be detected. The mineral 400 to be detected can be coal or other minerals other than coal. The embodiment of the present application does not limit the specific type of the mineral 400 to be detected. The online detection device 300 is used to detect the mineral 400 to be detected conveyed by the conveying device 100. Optionally, the conveying device 100 can be a belt conveyor, a screw conveyor, or other forms of conveyors. The embodiment of the present application does not limit the specific form of the conveying device 100. The conveying device 100 can be used to convey the mineral 400 to be detected.

[0040] The conveying device 100 is disposed adjacent to the online detection device 300. Specifically, the online detection device 300 can 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 online detection device 300, as long as the online detection device 300 can detect the mineral 400 to be detected while the conveying device 100 is transporting the mineral 400 to be detected.

[0041] The online detection device 300 includes a microwave detection module 310, a near-infrared light detection module 320 and an X-ray fluorescence detection module 330 arranged at intervals, wherein the microwave detection module 310 and the near-infrared light detection module 320 are used to detect the moisture content in the mineral 400 to be detected, and the X-ray fluorescence detection module 330, the microwave detection module 310 and the near-infrared light detection module 320 are combined to detect and analyze multiple components in the mineral 400 to be detected, wherein the X-ray fluorescence detection module 330 and the near-infrared light detection module 320 are combined to detect elemental information in the mineral 400 to be detected.

[0042] Specifically, the X-ray fluorescence detection module 330 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 wavelength of X-rays is relatively short, ranging from 0.01nm to 100nm. The X-ray fluorescence and near-infrared light detection modules 320 are used to detect atomic spectra of Si, Al, Ca, Fe, K, S, and the like in the mineral. The near-infrared light detection module 320 includes a transmitter and a receiver. The transmitter is used to transmit near-infrared light, which is an electromagnetic wave between visible light and mid-infrared light, with a wavelength in the range of 780nm-2526nm, toward the mineral 400 to be detected. The receiver is used to collect the near-infrared light after diffuse reflection from the mineral 400 to be detected. The molecular spectra of C, H, O, N functional groups, and the like in the mineral 400 to be detected are detected based on the received near-infrared light. Therefore, the combination of X-ray fluorescence and near-infrared light detection accurately and comprehensively detects elemental information in the mineral 400 to be detected. The microwave detection module 310 includes a generator and a receiver. The generator is used to transmit microwaves, which are electromagnetic waves with a frequency of 300MHz-300GHz and a wavelength between 1m (excluding 1m) and 1mm, toward the mineral 400 to be detected. The receiver is used to receive the microwaves and detect the moisture content in the mineral 400 to be detected based on the received microwaves.

[0043] Optionally, the microwave detection module 310, the near-infrared light detection module 320 and the X-ray fluorescence detection module 330 are arranged at intervals along the conveying direction A of the conveying device 100, or the microwave detection module 310, the X-ray fluorescence detection module 330 and the near-infrared light detection module 320 are arranged at intervals along the conveying direction A of the conveying device 100; or the near-infrared light detection module 320, the microwave detection module 310 and the X-ray fluorescence detection module 330 are arranged at intervals along the conveying direction A of the conveying device 100, and the near-infrared light detection module 320, the X-ray fluorescence detection module 330 and the microwave detection module 310 are arranged at intervals along the conveying direction A of the conveying device 100; or the X-ray fluorescence detection module 330, the microwave detection module 310 and the near-infrared light detection module 320 are arranged at intervals along the conveying direction A of the conveying device 100, or the X-ray fluorescence detection module 330, the near-infrared light detection module 320 and the microwave detection module 310 are arranged at intervals along the conveying direction A of the conveying device 100. The embodiment of the present application does not limit the setting order of the microwave detection module 310, the near-infrared light detection module 320 and the X-ray fluorescence detection module 330. As long as the mineral to be detected 400 can undergo microwave detection, near-infrared light detection and X-ray detection processes during the process of the conveying device 100 conveying the mineral to be detected 400, it can be sufficient.

[0044] Due to the physical limitations of X-ray fluorescence spectroscopy and near-infrared spectroscopy, as well as matrix effects of the mineral 400 being tested, single X-ray fluorescence spectroscopy or near-infrared spectroscopy alone cannot effectively provide comprehensive and accurate compositional information about the mineral 400 being tested. X-ray fluorescence spectroscopy cannot measure elements with atomic numbers less than 11, and near-infrared spectroscopy cannot measure low-absorbing components such as sulfur. Fusion of X-ray fluorescence spectroscopy and near-infrared spectroscopy can produce a richer spectrum of characteristic features. Furthermore, because near-infrared light measures diffusely reflected light from the surface of the mineral being tested, it can only measure moisture on the surface of the mineral being tested. Microwaves, on the other hand, can penetrate the entire mineral layer and perform precise moisture measurements. Therefore, microwave and near-infrared water measurement complement and verify each other, improving water measurement accuracy.

[0045] In the embodiment of the present application, the mineral detection equipment is simultaneously provided with a microwave detection module 310, a near-infrared light detection module 320, and an X-ray fluorescence detection module 330. The near-infrared light detection module 320 uses the principle of near-infrared light to obtain a near-infrared spectrum through the near-infrared light diffusely reflected from the surface of the mineral to be detected 400, and then detects the molecular spectra containing C, H, O, N functional groups, etc. in the mineral to be detected 400, and detects the moisture in the mineral to be detected 400. The microwave detection module 310 can also detect the moisture in the mineral to be detected 400 using the microwave principle. Since microwaves can penetrate the mineral to be detected 400, microwaves can be used to accurately measure moisture. Therefore, the microwave detection module 310 is combined with the near-infrared light detector to improve the water measurement accuracy; and the X-ray fluorescence detection module 330 uses rays to accurately measure the atomic spectra of Si, Al, Ca, Fe, K, S, etc. in the mineral to be detected 400. The X-ray spectrum is combined with the near-infrared spectrum to obtain a richer characteristic spectrum and more accurately detect the calorific value, total water, total sulfur, ash and other parameters in the mineral to be detected 400.

[0046] Therefore, the combination of the microwave detection module 310, the near-infrared light detection module 320 and the X-ray fluorescence detection module 330 makes the detection of the mineral 400 no longer single, and can detect and analyze multiple components in the mineral 400, which is beneficial to improving the detection accuracy of the mineral 400.

[0047] In an optional embodiment, the microwave detection module 310 , the near-infrared light detection module 320 , and the X-ray fluorescence detection module 330 are arranged at intervals along the conveying direction A of the conveying device 100 .

[0048] According to this embodiment, the microwave detection module 310, the near-infrared light detection module 320, and the X-ray fluorescence detection module 330 are at equal distances from the mineral to be detected 400, which facilitates the installation of the three in sequence along the conveying direction A. It is also beneficial for the microwave emitting end of the microwave detection module 310, the near-infrared light emitting end of the near-infrared light detection module 320, and the ray emitting end of the X-ray fluorescence detection module 330 to be directly directed toward the conveying device 100 so as to accurately emit light toward the mineral to be detected 400, thereby facilitating accurate detection.

[0049] Of course, in other embodiments, the microwave detection module 310 , the near-infrared light detection module 320 , and the X-ray fluorescence detection module 330 may also be arranged at intervals along other directions.

[0050] In an optional embodiment, reference Figure 1As shown, the microwave detection module 310 is a transmission-type microwave detection module, comprising a microwave generator 311 and a microwave receiver 312, which are arranged opposite each other. The microwave generator 311 and the microwave receiver 312 are located on either side of the conveyor device 100. The microwave generator 311 is used to transmit microwaves toward the mineral 400 to be detected, and the microwave receiver 312 is used to receive microwaves that have penetrated the mineral 400 to be detected. Specifically, when the microwaves emitted by the microwave generator 311 encounter the mineral 400 to be detected, a portion of the microwaves are absorbed, a portion of the microwaves are reflected, and a portion of the microwaves penetrate the mineral 400 to be detected. Therefore, the microwave receiver 312 receives the microwaves that have penetrated the mineral 400 to be detected and converts them into electrical signals. The signals are then processed by a signal conditioning circuit, and the power loss of the microwaves is calculated. The moisture content of the mineral 400 to be detected is determined from the relationship curve between humidity and microwave attenuation.

[0051] Optionally, the microwave generator 311 and the microwave receiver 312 may be located on the upper and lower sides of the conveying device 100, or on the left and right sides of the conveying device 100, respectively. Of course, the microwave generator 311 and the microwave receiver 312 may also be located at other positions of the conveying device 100. The microwave generator 311 may be spaced apart from the near-infrared light detection module 320 and the X-ray fluorescence detection module 330, or the microwave receiver 312 may be spaced apart from the near-infrared light detection module 320 and the X-ray fluorescence detection module 330.

[0052] The use of a transmission microwave detection module is beneficial to improving measurement accuracy, sensitivity and reliability.

[0053] In another embodiment, reference Figure 2 As shown, microwave detection module 310 is a reflective microwave detection module, comprising a microwave generator 311 and a microwave receiver 312. Microwave generator 311 and microwave receiver 312 are located on the same side of conveyor device 100. Microwave generator 311 is used to transmit microwaves toward mineral 400 to be detected, while microwave receiver 312 is used to receive microwaves reflected by mineral 400 to be detected. Specifically, when microwaves emitted by microwave generator 311 encounter mineral 400 to be detected, a portion of the microwaves is absorbed, a portion is reflected, and a portion penetrates mineral 400 to be detected. Microwave receiver 312 receives the reflected microwaves and converts them into electrical signals. The signals are then processed by a signal conditioning circuit, and the power loss of the microwaves is calculated. The moisture content of mineral 400 to be detected is determined from the relationship curve between humidity and microwave attenuation.

[0054] Optionally, the microwave generator 311 and the microwave receiver 312 can be located on the upper side of the conveying device 100, or on the left or right side of the conveying device 100. Of course, the microwave generator 311 and the microwave receiver 312 can also be located at other positions of the conveying device 100.

[0055] The use of a reflective microwave detection module is also beneficial to improving measurement accuracy, sensitivity and reliability.

[0056] Whether it is a transmission-type microwave detection module or a reflection-type microwave detection module, the absorption and reflection of microwaves are only related to humidity and have nothing to do with the material. The humidity of the mineral 400 to be detected is proportional to the microwave reflectivity and microwave absorptivity. Therefore, the change in the energy of the microwaves received by the microwave receiver 312 reflects the moisture content of the mineral 400 to be detected.

[0057] In an alternative embodiment, reference Figure 1 and Figure 2 As shown, the X-ray fluorescence detection module 330 includes an X-ray generator 331 and an X-ray detector 332 arranged in sequence. The X-ray generator 331 is used to emit X-rays to the mineral 400 to be detected, and the X-ray detector 332 is used to detect the fluorescence information generated by the mineral 400 to be detected after being excited by the X-rays, and the atomic spectra of Si, Al, Ca, Fe, K, S, etc. in the mineral 400 to be detected are fed back through the fluorescence information.

[0058] Optionally, the X-ray generator 331 and the X-ray detector 332 may be arranged sequentially along the conveying direction A of the conveying device 100 or in other directions. Of course, the X-ray generator 331 and the X-ray detector 332 may be in contact with each other or spaced apart.

[0059] With this embodiment, the use of X-rays is more convenient. Moreover, the fluorescence line intensity and backscattering intensity of Si and Ca in the X-ray spectrum are well correlated with the ash content. Therefore, through the X-ray spectrum, elements such as Na, K, Si, Al, Ca, Mg, Zn, Fe, and Mn can be accurately detected, and the element information in the mineral 400 to be detected can be accurately fed back.

[0060] In the scheme of this application, reference is made to Figure 1-Figure 4 As shown, the mineral detection device further includes a rectifying device 200, which is used to rectify the mineral to be detected 400. The embodiment of the present application does not limit the specific structure of the rectifying device 200, as long as it can flatten the surface of the mineral to be detected 400.

[0061] In this embodiment, the mineral detection equipment is additionally provided with a rectifying device 200 , which is used to rectify the mineral 400 to be detected, thereby improving the density, stability and flatness of the mineral 400 to be detected, which is beneficial to improving the detection accuracy of the online detection device 300 .

[0062] Of course, in other embodiments, the mineral detection equipment may not be provided with the rectifying device 200. Before the conveying device 100 conveys the mineral to be detected 400, the mineral to be detected 400 may be placed regularly on the conveying device 100 to ensure that the mineral to be detected 400 conveyed by the conveying device 100 is regular.

[0063] In an optional embodiment, the rectifying device 200 is located upstream of the online detection device 300 in the conveying direction A of the conveying device 100. In other words, the mineral 400 to be inspected conveyed by the conveying device 100 first undergoes rectification by the rectifying device 200 and then undergoes inspection by the online detection device 300. The rectifying device 200 is fixed relative to the conveying device 100.

[0064] In this embodiment, since the rectifier device 200 is located upstream of the online detection device 300, the mineral to be detected 400 first undergoes rectification by the rectifier device 200 and then undergoes the detection process of the online detection device 300. Therefore, the online detection device 300 detects the mineral to be detected 400 in a regular state, which is beneficial to improving the detection accuracy.

[0065] Of course, in other embodiments, the rectifying device 200 may also be located at other positions. Optionally, in the conveying direction A of the conveying device 100 , the rectifying device 200 may be located downstream of the online detection device 300 .

[0066] In an optional embodiment, reference Figure 3 As shown, the flow rectifying device 200 includes a rectifying member 210, which has a rectifying surface for flattening the mineral 400 to be detected. The rectifying surface is flat. When the rectifying member 210 rectify the mineral 400 to be detected, the rectifying surface is parallel to the conveying direction A of the conveying device 100. Optionally, the rectifying member 210 can have a bent structure or a curved structure. The embodiment of the present application does not limit the structure of the rectifying member 210, as long as the rectifying member 210 has a rectifying surface capable of flattening the mineral 400 to be detected.

[0067] In this embodiment, the rectifying surface of the rectifying element 210 is used to flatten the mineral 400 to be detected. Thus, the contact area between the rectifying element 210 and the mineral 400 to be detected is larger, which is more conducive to the rectifying element 210 flattening the mineral 400 to be detected, thereby improving the rectifying effect.

[0068] Optionally, the flow straightener 210 may include a guide scraper, which is used to divert the accumulated minerals 400 to be detected, and limit the height of the minerals 400 to be detected to a value or a range of values ​​greater than 11 cm, so as to avoid blockage caused by the middle part of the mineral 400 to be detected rising. In one example, the guide scraper limits the height of the mineral S to be detected to 6 cm; the flow straightener 210 may also include a shaping scraper, which preliminarily shapes the mineral 400 to be detected so that the cross-section of the mineral 400 to be detected reaches a width within a preset range, such as 6 cm -8 cm, or 5 cm -9 cm, or 4 cm -10 cm, or 3 cm -11 cm, or 2 cm -12 cm, or 1 cm -13 cm, or a value or a range of values ​​greater than 13 cm. The height is in another preset range, such as 3 cm-5 cm, 2 cm-6 cm, or 1 cm-7 cm, or a value or a range of values ​​greater than 7 cm. In one example, after being shaped by the shaping scraper, the width of the cross section of the mineral S to be tested is 7 cm and the height is 4 cm.

[0069] In another embodiment, reference Figure 4 As shown, the rectifying device 200 includes a support member 220 and a pressure roller 221. The support member 220 serves as a mounting base for the pressure roller 221. The support member 220 can be connected to the conveying device 100 or to other components, as long as the relative position of the pressure roller 221 and the conveying device 100 is fixed. The pressure roller 221 is rotatably mounted on the support member 220. The pressure roller 221 is used to contact the mineral to be tested 400 to flatten the mineral to be tested 400. Optionally, one of the pressure roller 221 and the support member 220 is provided with an axial hole, and the other is provided with a rotating shaft. The rotating shaft extends into the axial hole and rotatably engages with the axial hole to enable the pressure roller 221 to rotate relative to the support member 220. Further, optionally, the end of the pressure roller 221 can be rotatably mounted on the support member 220 via a bearing 222.

[0070] In this embodiment, the rolling process of the pressure roller 221 is used to flatten the mineral 400 to be detected. There is rolling friction between the pressure roller 221 and the mineral 400 to be detected, which reduces the friction between the rectifier 200 and the mineral 400 to be detected, and is conducive to the rectifier 200 to smoothly flatten the mineral 400 to be detected, thereby improving the rectification effect.

[0071] In a further embodiment, there are at least two pressing rollers 221, which are spaced apart along the conveying direction A of the conveyor device 100. Each pressing roller 221 contacts the mineral to be tested 400 being conveyed by the conveyor device 100. Furthermore, the height of each pressing roller 221 decreases in the conveying direction. That is, of any two adjacent pressing rollers 221, the height of the downstream pressing roller 221 is smaller than the height of the upstream pressing roller 221. In other words, after the mineral to be tested 400 is rolled by the upstream pressing roller 221, it is further rolled by the downstream pressing roller 221.

[0072] Optionally, there are two pressure rollers 221, with the downstream pressure roller 221 being 0.3 cm to 1 cm lower than the upstream pressure roller 221. The upstream pressure roller 221 compresses the mineral 400 to be tested to a first thickness, and the downstream pressure roller 221 further compresses the mineral 400 to be tested to a second thickness, where the second thickness is less than the first thickness. The difference between the first and second thicknesses can be within a preset thickness range, such as 0.3 cm to 1 cm, or 0.2 cm to 1.1 cm, 0.1 cm to 1.2 cm, or a value or range greater than 1.2 cm. In one example, the downstream pressure roller 512 is 0.5 cm lower than the upstream pressure roller 512. The first thickness can be 3 cm to 4 cm, and the second thickness can be 2.5 cm to 3.5 cm. In short, by setting the height position of the pressure rollers 221, the mineral 400 to be tested can be rolled to the desired thickness step by step.

[0073] With this embodiment, the number of pressing rollers 221 is increased, and any position of the mineral 400 to be tested undergoes the flattening process of at least two pressing rollers 221. The height of each pressing roller 221 is different, so the mineral 400 to be tested can achieve the required compression ratio through step-by-step rolling, which is more conducive to making the mineral 400 to be tested more flat and improving the rectification effect.

[0074] Optionally, refer to Figure 5 As shown, two adjacent pressure rollers 221 are connected to each other through a transmission assembly 240. The transmission assembly 240 includes a transmission chain 241 and a transmission wheel 242. One of the pressure rollers 221 is driven by a driving device 230, such as a driving motor. The ends of the two adjacent pressure rollers 221 are each provided with a transmission wheel 242, and the transmission chain 241 is used to drive and cooperate with each transmission wheel 242. In this way, when the driving device 230 drives one of the pressure rollers 221 to rotate, the other pressure roller 221 is driven to rotate through the transmission wheel 242 and the transmission chain 241. The rotation speed of the pressure roller 221 is equal to the rotation speed of the transmission chain 241. The transmission wheel 242 can be a sprocket. Of course, the transmission chain 241 can be replaced by a synchronous belt. In this case, the transmission wheel 242 is a pulley, which can achieve a transmission connection between the two adjacent pressure rollers 221.

[0075] Of course, in other embodiments, the number of the pressing rollers 221 may also be only one.

[0076] In this embodiment, referring to Figure 5 As shown, the rectifying device 200 is provided with the rectifying member 210 and the pressing roller 221 at the same time, and the rectifying member 210 includes a flow guiding scraper and a shaping scraper at the same time. The flow guiding scraper, the shaping scraper and the pressing roller 221 are arranged at intervals along the conveying direction of the conveying device 100. The cross sections of the flow guiding scraper and the shaping scraper are both in the shape of "冂". Any one of them separately restricts the width and height of the to-be-detected mineral 400 at the same time. Among them, in the conveying direction of the conveying device 100, the width of the flow guiding scraper is constant, the shaping scraper is in a tapered shape and the width gradually decreases. The width of the flow guiding scraper is greater than or equal to the width at the inlet of the shaping scraper, and the height of the flow guiding scraper is greater than the height at the inlet of the shaping scraper. To avoid the accumulation of the to-be-detected mineral 400 at the junction of the two, a baffle is provided on the upper side of the shaping scraper, which inclines towards the flow guiding scraper and extends upwards, and the height at the outlet of the shaping scraper is greater than the height of the rolling surface of the pressing roller 221. With such a setting, the flow guiding scraper and the shaping scraper initially shape the to-be-detected mineral 400, so that the height of the to-be-detected mineral 400 is suitable for the rolling of the pressing roller 221.

[0077] In an optional embodiment, the mineral detection device further includes a control device, and the control device is communicatively connected to the microwave detection module 310, the near-infrared light detection module 320 and the X-ray fluorescence detection module 330 respectively. Optionally, the control device may be a control device such as a single-chip microcomputer or a programmable logic controller. The control device may be electrically connected to the microwave detection module 310, the near-infrared light detection module 320 and the X-ray fluorescence detection module 330 through electrical connection lines, so as to achieve communication connection.

[0078] Optionally, the control device further includes a display screen, and the detection results of the microwave detection module 310, the near-infrared light detection module 320 and the X-ray fluorescence detection module 330 can be displayed through the display screen.

[0079] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A mineral detection device, characterized in that: The invention comprises a conveying device (100) and an online detection device (300), wherein the conveying device (100) is used to convey a mineral to be detected (400), and the online detection device (300) is used to detect the mineral to be detected (400) conveyed by the conveying device (100). The conveying device (100) and the online detection device (300) are arranged adjacent to each other. The online detection device (300) comprises a microwave detection module (310), a near-infrared light detection module (320), and an X-ray fluorescence detection module (330) arranged at intervals. The microwave detection module (310) and the near-infrared light detection module (320) are used to detect the moisture content in the mineral to be detected (400). The X-ray fluorescence detection module (330), the microwave detection module (310), and the near-infrared light detection module (320) are combined to detect and analyze multiple components in the mineral to be detected (400).

2. The mineral detection equipment according to claim 1, characterized in that: The microwave detection module (310), the near-infrared light detection module (320), and the X-ray fluorescence detection module (330) are arranged at intervals along the conveying direction (A) of the conveying device (100).

3. The mineral detection equipment according to claim 1, characterized in that: The microwave detection module (310) is a transmission-type microwave detection module, comprising a microwave generator (311) and a microwave receiver (312) arranged opposite to each other, the microwave generator (311) and the microwave receiver (312) being located on both sides of the conveying device (100), respectively; the microwave generator (311) is used to transmit microwaves toward the mineral to be detected (400), and the microwave receiver (312) is used to receive the microwaves that have penetrated the mineral to be detected (400).

4. The mineral detection equipment according to claim 1, characterized in that: The microwave detection module (310) is a reflective microwave detection module, comprising a microwave generator (311) and a microwave receiver (312). The microwave generator (311) and the microwave receiver (312) are located on the same side of the conveying device (100). The microwave generator (311) is used to transmit microwaves to the mineral to be detected (400), and the microwave receiver (312) is used to receive the microwaves reflected by the mineral to be detected (400).

5. The mineral detection equipment according to claim 1, characterized in that: The X-ray fluorescence detection module (330) comprises an X-ray generator (331) and an X-ray detector (332) which are arranged in sequence, wherein the X-ray generator (331) is used to emit X-rays toward the mineral to be detected (400), and the X-ray detector (332) is used to detect fluorescence information generated by the mineral to be detected (400) after being excited by the X-rays, and element information in the mineral to be detected (400) is detected through the fluorescence information.

6. The mineral detection equipment according to claim 1, characterized in that: The mineral detection equipment further comprises a rectifying device (200), wherein the rectifying device (200) is used to rectify the mineral (400) to be detected.

7. The mineral detection equipment according to claim 6, characterized in that: In the conveying direction (A) of the conveying device (100), the rectifying device (200) is located upstream of the online detection device (300).

8. The mineral detection equipment according to claim 6, characterized in that: The rectifying device (200) comprises a rectifying piece (210), wherein the rectifying piece (210) is provided with a rectifying surface for flattening the mineral (400) to be detected.

9. The mineral detection equipment according to claim 6, characterized in that: The rectifying device (200) comprises a support member (220) and a pressing roller (221), wherein the pressing roller (221) is rotatably arranged on the support member (220), and the pressing roller (221) is used to contact the mineral to be detected (400) to flatten the mineral to be detected (400).

10. The mineral detection equipment according to claim 9, characterized in that: The number of the pressing rollers (221) is at least two, and the pressing rollers (221) are arranged at intervals along the conveying direction (A) of the conveying device (100), and the height of each pressing roller (221) decreases in the conveying direction (A).

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