Mineral detection system

Abstract

The embodiment of the utility model provides a mineral detection system. The mineral detection system comprises a sample preparation device, a mineral information acquisition device, an abnormity monitoring device and a signal control device, the mineral information acquisition device is mounted above a detection conveyor belt of the sample preparation device and is used for acquiring energy spectrum signals and spectral signals of minerals on the detection conveyor belt and sending the acquired energy spectrum signals and spectral signals to the signal control device; the abnormity monitoring device comprises a first mine surface measuring part; the first mine surface measuring part is mounted in the mineral information acquisition device, is mounted towards the detection conveying belt, and is used for measuring first surface height information of minerals on the detection conveying belt and sending the first surface height information to the signal control device; and the signal control device sends the energy spectrum signal, the spectral signal and the first surface height information to signal processing equipment, so that the signal processing equipment obtains a mineral quantity detection result and performs first alarm judgment based on the first surface height information.

Description

Technical Field

[0001] The present application relates to the technical field of mineral detection, and in particular to a mineral detection system. Background Art

[0002] Online mineral detection technology, such as coal quality detection technology, can realize rapid detection of coal sample quality.

[0003] Coal samples are first collected on the main conveyor belt, crushed and shrunk, and then shaped before being fed to the testing belt. A mineral detection unit is installed on the testing belt. As the coal samples pass through the unit, they analyze and test their optical and energy spectra. Once tested, the samples enter the ore bin and are then transported back to the main conveyor belt.

[0004] During rapid coal sample testing, long-term testing can lead to abnormalities such as coal sample accumulation on the testing belt or excessive coal sample entering the mineral detection unit. These abnormalities cannot be immediately and effectively identified, leading to detection failures. This affects the coal sample testing process and makes it difficult to achieve stable operation of the mineral detection unit. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a mineral detection system so as to improve the stability of its mineral detection operation.

[0006] The present application provides a mineral detection system, comprising:

[0007] The sample preparation device comprises 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 minerals conveyed on the detection conveyor belt;

[0008] a mineral information collection device, installed above the detection conveyor belt, for collecting energy spectrum signals and spectral signals of the minerals on the detection conveyor belt, and sending the collected energy spectrum signals and spectral signals to the signal control device;

[0009] The abnormality monitoring device includes a first mineral surface measurement component; the first mineral surface measurement component is installed in the mineral information collection device and is installed toward the detection conveyor belt, and is used to measure first surface height information of the mineral flattened by the pressure roller on the detection conveyor belt, and send the first surface height information to the signal control device;

[0010] A signal control device is electrically connected to the mineral information collection device and the first mineral surface measurement component, and is used to output the collected energy spectrum signal and the spectral signal, as well as the first surface height information measured by the first mineral surface measurement component to a signal processing device, so that the signal processing device can obtain a mineral quality detection result based on the energy spectrum signal and the spectral signal and make a first alarm judgment based on the first surface height information.

[0011] In one or more embodiments, the first alarm is determined to be a sticky coal alarm, and the signal processing device is used to determine whether the coal is sticky based on the first surface height information, and if it is determined to be sticky coal, issue a sticky coal alarm.

[0012] In one or more embodiments, the device further comprises: a mineral bin disposed at the conveying end of the detection conveyor belt, the mineral bin having a mineral inlet and a mineral outlet, the mineral inlet being used to receive minerals conveyed by the conveying end of the detection conveyor belt;

[0013] The abnormality monitoring device further includes: a second ore surface measurement component, the second ore surface measurement component being disposed inside the ore bin and configured to measure second surface height information of the mineral in the ore bin and transmit the second surface height information to the signal control device;

[0014] The signal control device is also electrically connected to the second mine surface measurement component, and further outputs the second surface height information measured by the second mine surface measurement component to the signal processing equipment, so that the signal processing equipment can make a second alarm judgment based on the first surface height information.

[0015] In one or more embodiments, the second alarm is judged to be a coal blockage alarm, and the signal processing device is used to judge whether there is coal blockage based on the first surface height information and / or the second surface height information. If it is judged to be coal blockage, a coal blockage alarm is issued.

[0016] In one or more embodiments, the second mine surface measurement component includes an ultrasonic sensor.

[0017] In one or more embodiments, the mineral information collection device includes: a spectrum collection component and an energy spectrum collection component;

[0018] The spectrum acquisition assembly includes: a first light source and a spectrum detection module, the first light source and the spectrum detection module are arranged above the first opening of the mineral information acquisition device facing the detection conveyor belt, and are used to collect the spectrum information of the mineral;

[0019] The energy spectrum acquisition component includes: a second light source and an energy spectrum detector, which are arranged above the second opening of the mineral information acquisition device facing the detection conveyor belt to collect energy spectrum information of minerals.

[0020] In one or more embodiments, the first opening is covered with an open-hole insulating glass; the second opening is covered with a Mylar film;

[0021] The abnormality monitoring device further includes: a first image acquisition component and a second image acquisition component, which are respectively arranged toward the perforated insulating glass and the Mylar film, and are respectively used to acquire first image information of the perforated insulating glass and second image information of the Mylar film;

[0022] The signal control device is also electrically connected to the first image acquisition component and the second image acquisition component, and further outputs the first image information and the second image information to the signal processing device, so that the signal processing device can perform a third alarm judgment based on the first image information and the second image information, so that the external control device can determine whether to generate a third alarm information based on the first image information and the second image information.

[0023] In one or more embodiments, the first light source includes a near-infrared light source;

[0024] The second light source includes: an X-ray source and a high-voltage controller, and the high-voltage controller is used to supply power to the X-ray source.

[0025] In one or more embodiments, the mineral information collection device includes: a cover, the spectrum collection component and the energy spectrum collection component are arranged in the cover, and the first opening and the second opening are arranged at the bottom of the cover.

[0026] The first opening and the second opening are closable holes controlled by the switch of the signal control device.

[0027] In one or more embodiments, the signal control device is used to close the first opening and the second opening according to the second alarm judgment.

[0028] In one or more embodiments, the third alarm is determined to be a dust accumulation alarm, and the signal processing device is used to use a deep learning algorithm to identify whether there is dust based on the first image information and the second image information. If dust is identified, a dust accumulation alarm is issued.

[0029] In one or more embodiments, the housing is a radiation shielding housing.

[0030] In one or more embodiments, the mineral information collection device further comprises: a temperature control component;

[0031] The temperature control component is arranged on the cover body and is used to control the temperature inside the cover body.

[0032] In one or more embodiments, the sample preparation device also includes a scraper, which is located above the detection conveyor belt. The scraper and the pressure roller are arranged in sequence along the conveying direction of the detection conveyor belt. The scraper is used to rectify the mineral, and the pressure roller is used to flatten the rectified mineral.

[0033] In one or more embodiments, the first mine surface measurement component includes: a laser rangefinder, a linear array laser rangefinder, and a binocular vision array ranging device.

[0034] The mineral detection system provided in an embodiment of the present application includes a sample preparation device, a mineral information collection device, an anomaly monitoring device, and a signal control device. The sample preparation device includes a detection conveyor belt and a pressure roller, the pressure roller being located above the detection conveyor belt and configured to flatten the mineral conveyed on the detection conveyor belt. The mineral information collection device is mounted above the detection conveyor belt and configured to collect energy spectrum signals and spectral signals from the mineral on the detection conveyor belt and transmit the collected energy spectrum signals and spectral signals to the signal control device. The anomaly monitoring device includes a first mineral surface measurement component, which is mounted within the mineral information collection device and facing the detection conveyor belt and configured to measure first surface height information of the mineral on the detection conveyor belt flattened by the pressure roller and transmit the first surface height information to the signal control device. The signal control device is electrically connected to the mineral information collection device and the first mineral surface measurement component and configured to output the collected energy spectrum signals and spectral signals, as well as the first surface height information measured by the first mineral surface measurement component, to a signal processing device, so that the signal processing device can obtain a mineral quality detection result based on the energy spectrum signals and spectral signals and make a first alarm judgment based on the first surface height information. For example, when the mineral detection system is in operation, if the first surface height information fluctuates within a certain range, it is convenient for the signal processing equipment to make a first alarm judgment, so that the equipment maintenance personnel can promptly inspect and repair the pressure roller and solve the abnormal problem of coal sticking to the pressure roller, so as to improve the stability of its mineral detection operation.

[0035] Of course, any product implementing the present application does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0037] Figure 1 A schematic diagram of the structure of a mineral detection system provided in an embodiment of the present application;

[0038] Figure 2 A schematic diagram of the electrical connection structure of a mineral detection system provided in an embodiment of the present application.

[0039] The reference numerals are as follows:

[0040] Mineral 100;

[0041] Sample preparation device 10, detection conveyor belt 11, pressure roller 12, scraper 13, mineral information collection device 20, first opening 201, second opening 202, controllable valve 203, third opening 204, spectrum collection component 21, first light source 211, near-infrared light source 2111, spectrum detection module 212, aperture isolation glass 213, energy spectrum collection component 22, second light source 221, X-ray light source 2221, high-voltage controller 2222, energy spectrum detector 222, Mylar film 223, cover 23, radiation shielding cover 231, temperature control component 24, abnormality monitoring device 30, first mine surface measurement component 31, laser rangefinder 311, second mine surface measurement component 32, ultrasonic sensor 321, first image collection component 33, second image collection component 34, signal control device 40, signal processing equipment 50, ore bin 60, mine entrance 61. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field based on this application are within the scope of protection of the present invention.

[0043] In the related art, the inventors found that in actual operation, the mineral detection system may encounter abnormal conditions such as coal sticking to the pressure rollers, coal blocking the belts, and dust accumulation inside the detection unit. These abnormal conditions will affect the stability of the mineral detection system's operation.

[0044] The main purpose of this embodiment is to provide a mineral detection system to improve the stability of its mineral detection operation.

[0045] To this end, this application proposes a mineral detection system. The mineral detection system provided in the embodiments of this application facilitates monitoring of abnormalities such as coal sticking and blockage on the press rollers, and dust inside the mineral information collection device, thereby facilitating timely detection and resolution of these abnormalities by equipment maintenance personnel and improving the stability of its mineral detection operations.

[0046] First, in order to facilitate the monitoring of abnormal coal sticking to the press roller, Figure 1This is a structural diagram of a mineral detection system provided in an embodiment of the present application. Figure 2 A schematic diagram of the electrical connection structure of a mineral detection system provided in an embodiment of the present application is shown in FIG. Figure 1 and Figure 2 As shown, a mineral detection system can be used to detect the mineral quality of various minerals 100 such as coal, charcoal, and metals. In the following embodiment of this scheme, taking coal sample detection as an example, the mineral detection system includes: a sample preparation device 10, a mineral information collection device 20, an abnormality monitoring device 30 and a signal control device 40. The sample preparation device 10 includes a detection conveyor belt 11 and a pressure roller 12. The pressure roller 12 is located above the detection conveyor belt 11 and is used to flatten the coal sample conveyed on the detection conveyor belt 11; the mineral information collection device 20 is installed above the detection conveyor belt 11 and is used to collect energy spectrum signals and spectral signals of the coal sample on the detection conveyor belt 11, and send the collected energy spectrum signals and spectral signals to the signal control device 40; the abnormality monitoring device 40 The device 30 includes a first mineral surface measurement component 31; the first mineral surface measurement component 31 is installed in the mineral information collection device 20 and is installed toward the detection conveyor belt 11, and is used to measure the first surface height information of the coal sample flattened by the pressure roller 12 on the detection conveyor belt 11, and send the first surface height information to the signal control device 40; the signal control device 40 is electrically connected to the mineral information collection device 20 and the first mineral surface measurement component 31, and is used to output the collected energy spectrum signal and spectral signal, as well as the first surface height information measured by the first mineral surface measurement component 31 to the signal processing device 50, so that the signal processing device 50 can obtain the mineral quality detection result based on the energy spectrum signal and spectral signal and make a first alarm judgment based on the first surface height information.

[0047] In actual operation of the mineral detection system, after a coal sample is conveyed on the detection conveyor belt 11 and passed through the press roller 12, the first surface of the coal sample is flattened by the press roller 12. However, in some cases, the press roller 12 may be sticky. This can prevent the press roller 12 from flattening the first surface of the coal sample, making it difficult for the mineral information collection device 20 to detect coal quality. In an embodiment of this solution, for example, during operation of the mineral detection system, if the first alarm is determined to be a sticking alarm, the signal processing device 50 is configured to determine whether the coal sample is sticking based on the first surface height information. If so, a sticking alarm is issued. For example, the signal processing device 50 is configured to determine whether the height of the coal sample exceeds a threshold based on the first surface height information. If so, a sticking alarm is issued. Alternatively, the signal processing device 50 is configured to calculate the roughness of the coal sample based on the first surface height information, determine whether the roughness exceeds a threshold, and if so, a sticking alarm is issued. This facilitates timely inspection and maintenance of the press roller 12 to address sticking issues, thereby improving the stability of the mineral detection operation.

[0048] In addition, to facilitate the flattening of the sample coal by the pressure roller 12, the sample preparation device 10 also includes a scraper 13. The scraper 13 is located above the detection conveyor belt 11. The scraper 13 and the pressure roller 12 are arranged in sequence along the conveying direction of the detection conveyor belt 11. The scraper 13 is used to straighten the sample coal, and the pressure roller 12 is used to flatten the straightened sample coal. The height of the scraper 13 is greater than that of the pressure roller 12. The coal sample on the detection conveyor belt 11 is first roughly flattened by the scraper 13, and then flattened by the pressure roller 12.

[0049] Furthermore, the signal processing device 50 can determine whether to generate a first alarm based on the first surface height information. In a specific implementation, the roughness of the coal sample surface is calculated based on the continuous first surface height information during the operation of the conveyor belt 11. If the roughness is greater than a threshold, the first alarm is generated.

[0050] During implementation, the mineral information collection device 20 includes a spectrum collection component 21 and an energy spectrum collection component 22. The spectrum collection component 21 includes a first light source 211 and a spectrum detection module 212. The first light source 211 and spectrum detection module 212 are positioned above a first opening 201 of the mineral information collection device 20, facing the detection conveyor belt 11, for collecting spectral information of the mineral. The energy spectrum collection component 22 includes a second light source 221 and an energy spectrum detector 222. The second light source 221 and energy spectrum detector 222 are positioned above a second opening 202 of the mineral information collection device 20, facing the detection conveyor belt 11, for collecting energy spectrum information of the mineral. The signal control device 40 feeds the collected energy spectrum and spectrum information into an algorithm processing system, which outputs a mineral quality detection result, including coal composition information.

[0051] Specifically, the first surface measurement component 31 is positioned above the third opening 204 of the mineral information collection device 20, facing the detection conveyor belt 11. The first surface measurement component 31 includes a laser rangefinder 311, which determines the coal flow height of the sample in real time. If the coal flow height and roughness exceed a threshold, the press roller 12 is determined to have a sticking problem. The first surface measurement component 31 can also be a linear array laser rangefinder, a binocular vision array ranging device, or the like.

[0052] Secondly, in some implementations, the mineral detection system also includes: a mine bin 60, which is arranged at the conveying end of the detection conveyor belt 11, and the mine bin 60 has an ore entrance 61 and a ore exit, and the ore entrance 61 is used to receive the coal sample conveyed by the conveying end of the detection conveyor belt 11.

[0053] In actual applications, after the sample coal enters the ore bin 60 , if the ore outlet of the ore bin 60 fails to discharge the sample coal smoothly, it may easily cause coal blockage in the ore bin 60 .

[0054] In order to facilitate the monitoring of coal blockage anomalies, the anomaly monitoring device 30 also includes: a second mine surface measurement component 32, which is arranged inside the mine bin 60, for measuring the second surface height information of the sample coal in the mine bin 60, and sending the second surface height information to the signal control device 40; the signal control device 40 is also electrically connected to the second mine surface measurement component 32, and further outputs the second surface height information measured by the second mine surface measurement component 32 to the signal processing device 50, so that the signal processing device 50 can make a second alarm judgment based on the second surface height information.

[0055] Furthermore, the signal processing device 50 can perform an alarm determination based on the second surface height information. For example, if the second alarm is determined to be a coal blockage alarm during the operation of the conveyor belt 11, the signal processing device 50 is configured to determine whether a coal blockage exists based on at least one of the first surface height information and the second surface height information. If a coal blockage exists, a coal blockage alarm is issued.

[0056] For example, the signal processing device 50 is configured to issue a coal blockage alarm if the first surface height information is greater than a first threshold, or to issue a coal blockage alarm if the second surface height information is greater than a second threshold.

[0057] In practice, the second mine surface measurement component 32 includes an ultrasonic sensor 321. By adding the ultrasonic sensor 321 to determine the height of the sample coal in the ore bin 60, and using the laser rangefinder 311 to determine the coal flow height in real time, in some embodiments, if the coal flow height (i.e., the first surface height information) is greater than a first threshold, or the height of the sample coal in the ore bin 60 (i.e., the second surface height information) is greater than a second threshold, or the first surface height information is greater than the first threshold and the second surface height information is greater than the second threshold, the signal processing device 50 issues a coal blockage alarm, indicating that a coal blockage problem exists.

[0058] The first opening 201 and the second opening 202 are closable holes that are controlled by the signal control device 40. In a specific implementation, a controllable valve 203 is provided below each of the first opening 201 and the second opening 202 to open and close the first opening 201 and the second opening 202. Specifically, the controllable valve 203 can be an electric or pneumatic push-pull plate.

[0059] If the ore bin 60 is blocked by coal, coal samples on the detection conveyor belt 11 may easily accumulate, causing the coal surface to rise and contaminating the test holes (i.e., first opening 201 and second opening 202) of the spectrum acquisition assembly 21 and the energy spectrum acquisition assembly 22. In the implementation of this solution, if the ore bin 60 is blocked by coal, the test holes (i.e., first opening 201 and second opening 202) of the spectrum acquisition assembly 21 and the energy spectrum acquisition assembly 22 are promptly closed based on the second alarm determination, thereby preventing coal samples from entering the mineral information acquisition device 20. Specifically, the signal control device 40 is configured to close the first opening 201 and the second opening 202 based on the second alarm determination, thereby enabling rapid closure of the first opening 201 and the second opening 202 in the event of coal blockage, thereby protecting the spectrum acquisition assembly 21 and the energy spectrum acquisition assembly 22.

[0060] Again, in order to facilitate the monitoring of abnormal dust accumulation inside the mineral information collection device 20, the first opening 201 is covered with a perforated insulating glass 213; the second opening 202 is covered with a Mylar film 223; the abnormality monitoring device 30 also includes: a first image acquisition component 33 and a second image acquisition component 34, which are respectively arranged toward the perforated insulating glass 213 and the Mylar film 223, and are respectively used to collect the first image information of the perforated insulating glass 213 and the second image information of the Mylar film 223; the signal control device 40 is also electrically connected to the first image acquisition component 33 and the second image acquisition component 34, and further outputs the first image information and the second image information to the signal processing device 50, so that the signal processing device 50 can make a third alarm judgment based on the first image information and the second image information.

[0061] In this embodiment, by placing video surveillance devices (first image acquisition component 33 and second image acquisition component 34) at the openings (first opening 201 and second opening 202) of spectrum acquisition component 21 and energy spectrum acquisition component 22, dust accumulation at the openings of Mylar film 223 and glass can be monitored in real time. If excessive dust accumulation occurs, immediate notification is provided. For example, if excessive dust accumulation occurs, the device can immediately issue an alarm.

[0062] In a specific implementation, the third alarm is determined to be a dust accumulation alarm, and the signal processing device 50 is used to use a deep learning algorithm to identify whether there is dust based on the first image information and the second image information. If dust is identified, a dust accumulation alarm is issued.

[0063] Specifically, the first light source 211 includes a near-infrared light source 2111 ; the second light source 221 includes an X-ray light source 2221 and a high-voltage controller 2222 , and the high-voltage controller 2222 is used to supply power to the X-ray light source 2221 .

[0064] Furthermore, the mineral information collection device 20 includes a cover 23 , the spectrum collection component 21 and the energy spectrum collection component 22 are arranged in the cover 23 , and the first opening 201 and the second opening 202 are arranged at the bottom of the cover 23 .

[0065] The cover 23 may be a radiation shielding cover 231 , which is used to provide radiation protection to the X-ray source 2221 to prevent X-rays from harming people outside the cover 23 .

[0066] Specifically, the mineral information collection device 20 further includes a temperature control component 24 . The temperature control component 24 is disposed within the housing 23 and is configured to control the temperature within the housing 23 . The temperature control component 24 is configured to maintain the temperature of the housing 23 within a certain range to prevent the temperature within the mineral information collection device 20 from becoming excessively high. For example, the temperature control component 24 may include a TEC (thermoelectric cooler), which is connected to the housing 23 via a heat conducting component to control the temperature within the housing 23 .

[0067] The embodiments provided in this application have at least one of the following advantages:

[0068] 1. Identification of coal sticking to the press roller. The laser rangefinder is used to determine the coal flow height in real time. If the coal flow height exceeds the height threshold, it is determined that there is a coal sticking problem on the press roller, so as to provide timely alarm.

[0069] 2. Coal blockage identification and emergency response. By adding an ultrasonic sensor to the discharge port and using a laser rangefinder to measure the coal flow height in real time, it is determined whether there is a coal blockage problem. If a coal blockage occurs, the test holes (first opening and second opening) of the spectrum acquisition component and the energy spectrum acquisition component are closed in a timely manner to prevent coal from entering the spectrum acquisition component and the energy spectrum acquisition component.

[0070] 3. Identify abnormal dust accumulation inside the mineral information collection device. By placing the first and second image collection components at the first and second openings, dust accumulation at the openings of the Mylar film and the isolation glass can be monitored in real time. If excessive dust accumulation occurs, an immediate alarm can be issued.

[0071] The above are only preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application are included in the scope of protection of the present application.

Claims

1. A mineral detection system, characterized in that: include: A sample preparation device (10) comprises a detection conveyor belt (11) and a pressing roller (12), wherein the pressing roller (12) is located above the detection conveyor belt (11) and is used to flatten the mineral (100) conveyed on the detection conveyor belt (11); a mineral information collection device (20), installed above the detection conveyor belt (11), for collecting energy spectrum signals and spectral signals of the minerals (100) on the detection conveyor belt (11), and sending the collected energy spectrum signals and spectral signals to a signal control device (40); An abnormality monitoring device (30) includes a first mineral surface measurement component (31); the first mineral surface measurement component (31) is installed in the mineral information acquisition device (20) and is installed toward the detection conveyor belt (11), and is used to measure first surface height information of the mineral (100) flattened by the pressure roller (12) on the detection conveyor belt (11), and send the first surface height information to the signal control device (40); A signal control device (40) is electrically connected to the mineral information collection device (20) and the first mineral surface measurement component (31), and is used to output the collected energy spectrum signal and the spectrum signal, as well as the first surface height information measured by the first mineral surface measurement component (31) to a signal processing device (50), so that the signal processing device (50) can obtain a mineral quality detection result based on the energy spectrum signal and the spectrum signal and perform a first alarm judgment based on the first surface height information.

2. The mineral detection system according to claim 1, characterized in that: The first alarm is judged to be a sticky coal alarm, and the signal processing device (50) is used to judge whether the coal is sticky based on the first surface height information, and if it is judged to be sticky coal, a sticky coal alarm is issued.

3. The mineral detection system according to claim 1, characterized in that: Also includes: An ore bin (60) is provided at the conveying end of the detection conveyor belt (11), the ore bin (60) having an ore inlet (61) and an ore outlet, the ore inlet (61) being used to receive the mineral (100) conveyed by the conveying end of the detection conveyor belt (11); The abnormality monitoring device (30) further includes: a second mineral surface measurement component (32), the second mineral surface measurement component (32) being arranged inside the mineral bin (60) and configured to measure second surface height information of the mineral (100) in the mineral bin (60), and to transmit the second surface height information to the signal control device (40); The signal control device (40) is also electrically connected to the second mineral surface measurement component (32), and further outputs the second surface height information measured by the second mineral surface measurement component (32) to the signal processing device (50), so that the signal processing device (50) can perform a second alarm judgment based on the second surface height information.

4. The mineral detection system according to claim 3, characterized in that: The second alarm is judged to be a coal blocking alarm, and the signal processing device (50) is used to judge whether there is coal blocking based on the first surface height information and / or the second surface height information, and if it is judged to be coal blocking, a coal blocking alarm is issued.

5. The mineral detection system according to claim 3, characterized in that: The second mine surface measurement component (32) includes an ultrasonic sensor (321).

6. The mineral detection system according to claim 3, characterized in that: The mineral information collection device (20) comprises: a spectrum collection component (21) and an energy spectrum collection component (22); The spectrum collection component (21) comprises: a first light source (211) and a spectrum detection module (212); the first light source (211) and the spectrum detection module (212) are arranged above a first opening (201) of the mineral information collection device (20) facing the detection conveyor belt (11), and are used to collect spectrum information of the mineral (100); The energy spectrum acquisition component (22) comprises: a second light source (221) and an energy spectrum detector (222); the second light source (221) and the energy spectrum detector (222) are arranged above a second opening (202) of the mineral information acquisition device (20) facing the detection conveyor belt (11), and are used to collect energy spectrum information of the mineral (100).

7. The mineral detection system according to claim 6, characterized in that: The first opening (201) is covered with an opening insulating glass (213); the second opening (202) is covered with a Mylar film (223); The abnormality monitoring device (30) further includes: a first image acquisition component (33) and a second image acquisition component (34), which are respectively arranged toward the perforated insulating glass (213) and the Mylar film (223), and are respectively used to acquire first image information of the perforated insulating glass (213) and second image information of the Mylar film (223); The signal control device (40) is also electrically connected to the first image acquisition component (33) and the second image acquisition component (34), and further outputs the first image information and the second image information to the signal processing device (50), so that the signal processing device (50) can perform a third alarm judgment based on the first image information and the second image information.

8. The mineral detection system according to claim 6, characterized in that: The first light source (211) includes a near-infrared light source (2111); The second light source (221) comprises: an X-ray source (2221) and a high-voltage controller (2222), wherein the high-voltage controller (2222) is used to supply power to the X-ray source (2221).

9. The mineral detection system according to claim 6, characterized in that: The mineral information collection device (20) comprises: a cover (23), the spectrum collection component (21) and the energy spectrum collection component (22) are arranged in the cover (23), and the first opening (201) and the second opening (202) are arranged at the bottom of the cover (23); wherein, The first opening (201) and the second opening (202) are closable holes controlled by the switch of the signal control device (40).

10. The mineral detection system according to claim 9, characterized in that: The signal control device (40) is used to close the first opening (201) and the second opening (202) according to the second alarm judgment.

11. The mineral detection system according to claim 7, characterized in that: The third alarm is determined to be a dust accumulation alarm, and the signal processing device (50) is used to use a deep learning algorithm to identify whether there is dust based on the first image information and the second image information, and if dust is identified, a dust accumulation alarm is issued.

12. The mineral detection system according to claim 9, characterized in that: The cover body (23) is a radiation shielding cover (231).

13. The mineral detection system according to claim 9, characterized in that: The mineral information collection device (20) further includes: a temperature control component (24); The temperature control component (24) is arranged on the cover (23) and is used to control the temperature inside the cover (23).

14. The mineral detection system according to claim 1, characterized in that: The sample preparation device (10) further comprises a scraper (13), wherein the scraper (13) is located above the detection conveyor belt (11), and the scraper (13) and the pressing roller (12) are arranged in sequence along the conveying direction of the detection conveyor belt (11); the scraper (13) is used to rectify the mineral (100), and the pressing roller (12) is used to flatten the rectified mineral (100).

15. The mineral detection system according to claim 1, characterized in that: The first mine surface measurement component (31) comprises: a laser rangefinder (311) or a linear array laser rangefinder or a binocular vision array distance measurement device.

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