Equipment calibration method, system, medium and product for ore sorting machine

Abstract

The present invention discloses an equipment calibration method, system, medium, and product for an ore sorter. The method includes determining a grade sorting threshold G% and a maximum thickness T-max based on the grade and thickness of a target ore, preparing a corresponding standard ore sample, and feeding it into an XRT ore sorter for imaging. The tube voltage is then adjusted while observing the XRT ore sorter imaging until the minimum tube voltage at which the XRT ore sorter's radiation can penetrate the standard ore sample is found. The XRT ore sorter's tube voltage is set to the minimum tube voltage, multiple standard ore samples are fed into the XRT ore sorter for imaging, and the tube current is adjusted until the minimum tube current at which the XRT ore sorter's radiation can penetrate each position of the standard ore sample is found. The present invention aims to set appropriate tube voltage and tube current based on the properties of the target ore, enabling the XRT sorter to achieve good sorting results while maintaining low radiation safety risks and electricity costs.

Description

Technical Field

[0001] The present invention relates to an XRT ore sorter, and in particular to an equipment calibration method, system, medium and product of an ore sorter. Background Art

[0002] XRT ore sorting machine is a kind of equipment that uses X-ray to detect and sort ore. Figure 1 This is an example of an XRT image obtained by an XRT ore sorter. The tube voltage and tube current parameters in an XRT ore sorter directly affect the X-ray energy range generated by its X-ray tube, thereby directly and significantly affecting the performance of the XRT ore sorter. However, the setting of tube voltage and tube current parameters requires consideration of multiple factors, including radiation safety, electricity costs, and sorting performance. Currently, no scientific, standardized method or process for determining these two parameters has been proposed in published inventions and literature. According to market research, the industry's setting of these two parameters is largely based on experience, and the setting process lacks specificity to the target ore properties. This unscientific parameter setting method can easily result in the XRT ore sorter's performance not being fully utilized, or lead to unnecessary electricity costs and radiation issues. Summary of the Invention

[0003] Technical problem to be solved by the present invention: In response to the above-mentioned problems of the prior art, an equipment calibration method, system, medium and product for an ore sorter are provided. The present invention aims to set appropriate tube voltage and tube current according to the properties of the target ore, so that the XRT sorter can achieve good sorting effects while maintaining low radiation safety risks and electricity costs.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A method for calibrating an ore sorter comprises the following steps:

[0006] S1, according to the type, grade and thickness distribution information of the target ore to be sorted, determine the target mineral element type, grade sorting threshold G%, and the maximum thickness T-max of the ore to be sorted;

[0007] S2, preparing multiple standard ore samples with target mineral element grade being the grade separation threshold G% and thickness being the maximum thickness T-max;

[0008] S3, feeding a plurality of standard ore samples into an XRT ore sorter for imaging, and adjusting the tube voltage of the XRT ore sorter to observe the imaging of the XRT ore sorter until a minimum tube voltage at which the XRT ore sorter's radiation can penetrate the standard ore samples is found;

[0009] S4, setting the tube voltage of the XRT ore sorter to the minimum tube voltage, sending multiple standard ore samples into the XRT ore sorter for imaging, and adjusting the tube current of the XRT ore sorter to observe the imaging of the XRT ore sorter until the minimum tube current at which the XRT ore sorter's rays can penetrate each position of the standard ore samples is found.

[0010] Optionally, the grade sorting threshold G% in step S1 refers to a threshold for classifying ore into concentrate ore and waste ore, and ore with a grade greater than the grade sorting threshold G% is concentrate ore, otherwise it is waste ore.

[0011] Optionally, when preparing multiple standard ore samples with a target mineral element grade of the grade sorting threshold G% and a thickness of the maximum thickness T-max in step S2, the steps include selecting target mineral element powder particles and gangue powder particles of the ore in required proportions for grinding; after grinding, loading them into a graphite mold according to the spatial distribution characteristics of the target ore, pressing and molding them, and then sintering them to obtain the required multiple standard ore samples.

[0012] Optionally, in step S3, the function expression of adjusting the tube voltage of the XRT ore sorter and observing the imaging of the XRT ore sorter until finding the minimum tube voltage at which the XRT ore sorter's rays can penetrate the standard ore sample is:

[0013] ，

[0014] In the above formula, is the minimum tube voltage, is the tube voltage, is the number of standard ore samples, When the tube voltage is The XRT image of the standard ore sample The gray value of a pixel, is the preset grayscale value threshold.

[0015] Optionally, in step S3, the tube current of the XRT ore sorter is adjusted and the imaging of the XRT ore sorter is observed until the minimum tube current at which the XRT ore sorter's rays can penetrate each position of the standard ore sample is found. The function expression is:

[0016] ,

[0017] In the above formula, is the minimum tube current, is the tube current, When the tube current is The average value of the gray value variance and background variance of the XRT image of the standard ore sample is is the preset gray value variance threshold.

[0018] Optionally, the step of feeding the plurality of standard ore samples into the XRT ore sorter for imaging further includes adjusting the belt speed of the XRT ore sorter to a preset target speed. .

[0019] Optionally, after step S4, the method further includes setting the tube voltage of the XRT ore sorter to the minimum tube voltage, setting the tube current to the minimum tube current, and feeding the target ore into the XRT ore sorter for imaging sorting.

[0020] Optionally, when the target ore is fed into the XRT ore sorter for imaging sorting, the method further includes obtaining the belt speed of the XRT ore sorter after adjusting the belt speed of the XRT ore sorter for imaging sorting the target ore. , set the belt speed Divide by target speed An adjustment coefficient is obtained, and the tube voltage of the XRT ore sorter is set to the product of the minimum tube voltage and the adjustment coefficient, and the tube current is set to the product of the minimum tube current and the adjustment coefficient.

[0021] In addition, the present invention also provides an equipment calibration system for an ore sorting machine, comprising a microprocessor and a memory connected to each other, wherein the microprocessor is programmed or configured to execute the equipment calibration method for the ore sorting machine.

[0022] In addition, the present invention also provides a computer-readable storage medium, in which a computer program or instruction is stored. The computer program or instruction is programmed or configured to execute the equipment calibration method of the ore sorting machine through a processor.

[0023] In addition, the present invention also provides a computer program product, comprising a computer program or instructions, which are programmed or configured to execute the equipment calibration method of the ore sorting machine through a processor.

[0024] Compared with existing technologies, this invention offers the following key advantages: Addressing the current lack of a standardized, scientific method for setting the tube voltage and current, key parameters of X-ray tubes in XRT ore sorters, this invention designs an implementable, scientific, and standardized process for determining these parameters. This process, according to the invention, enables appropriate tube voltage and current settings based on the properties of the target ore, enabling the XRT ore sorter to achieve excellent sorting results while maintaining low radiation safety risks and electricity costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is an example of an XRT image obtained by an XRT ore sorting machine in the prior art.

[0026] Figure 2 Schematic diagram of the basic process of the method of the embodiment of the present invention.

[0027] Figure 3 This is an example of an XRT image of a standard ore sample in an embodiment of the present invention.

[0028] Figure 4 This is an example of an XRT image of a standard ore sample when the tube voltage is too low in an embodiment of the present invention.

[0029] Figure 5 This is an example of an XRT image of a standard ore sample when the tube current is too low in an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of such embodiments are illustrated in the accompanying drawings, where identical or similar reference numerals throughout denote identical or similar elements or elements having identical or similar functions. The embodiments described below with reference to the accompanying drawings are illustrative and intended solely to explain the present invention and are not to be construed as limiting the present invention. In the description of the present invention, references to "first," "second," and so on are intended solely for the purpose of distinguishing technical features and are not to be construed as indicating or implying relative importance, the number of such referenced technical features, or the order of such referenced technical features. Where references to orientation, such as "upper," "lower," and so on, are made based on the orientations or positional relationships shown in the accompanying drawings, such orientations are intended solely for the purpose of facilitating the description of the present invention and simplifying the description. Such orientations are not intended to indicate or imply that the device or element referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present invention. Unless otherwise expressly defined, terms such as "dispose," "install," and "connect" in the description of the present invention should be interpreted broadly. Persons skilled in the art can reasonably determine the specific meanings of such terms within the present invention based on the specific content of the technical solution.

[0031] like Figure 2 As shown, this embodiment provides an equipment calibration method for an ore sorter, comprising the following steps:

[0032] S1. Based on the type, grade, and thickness distribution of the target ore, determine the target mineral element type, grade separation threshold G%, and the maximum thickness T-max of the ore to be separated. For example, for a pre-waste task on a batch of copper ore, the target mineral element is copper (Cu). Through sampling and testing, the grade distribution information of the copper ore batch is determined, and based on this data, the copper grade separation threshold is further determined to be 3%. This will enable separation indicators (such as copper mineral element scrap rate and recovery rate) to meet the desired targets. Through sampling and testing, the thickness distribution information of the copper ore batch is determined, and based on this data, the maximum thickness of the ore is further determined to be 6 cm. The preparation of a standard ore sample according to these parameters is necessary to obtain a standard sample of the most difficult-to-penetrate ore in the target separation ore, which will facilitate subsequent calibration and adjustment of the tube current and tube voltage.

[0033] S2, prepare multiple standard ore samples with a target mineral element grade of the grade sorting threshold G% and a thickness of the maximum thickness T-max; for example, for the copper ore described in step S1, prepare a batch of cylindrical ore samples with a copper (Cu) grade of 3%, a thickness of 6 cm, and a radius of 3 cm. The size of the radius is not important, as long as the imaging area of ​​the sample under XRT detection is large enough. The preparation of the standard sample can be obtained by artificially mixing the mineral powders of the target mineral and gangue, and further placing the mixed mineral powders into a mold and sintering them in an electric plasma sintering furnace;

[0034] S3, feeding a plurality of standard ore samples into an XRT ore sorter for imaging, and adjusting the tube voltage of the XRT ore sorter to observe the imaging of the XRT ore sorter until a minimum tube voltage at which the XRT ore sorter's radiation can penetrate the standard ore samples is found;

[0035] S4, setting the tube voltage of the XRT ore sorter to the minimum tube voltage, sending multiple standard ore samples into the XRT ore sorter for imaging, and adjusting the tube current of the XRT ore sorter to observe the imaging of the XRT ore sorter until the minimum tube current at which the XRT ore sorter's rays can penetrate each position of the standard ore samples is found.

[0036] In this embodiment, the grade separation threshold G% in step S1 is used to classify ore into concentrate and waste ore. Ore with a grade greater than the grade separation threshold G% is considered concentrate, while ore with a grade greater than the grade separation threshold G% is considered waste ore. In this embodiment, the target ore thickness [T-min, T-max] is [1 cm, 6 cm], meaning the maximum thickness T-max is 6 cm.

[0037] In step S2 of this embodiment, standard ore samples must be prepared. Due to the uncertainty of the raw ore grade, a batch of standard ore samples with controllable grade and thickness is required. This batch of standard ore samples should include at least one "hardest-to-penetrate sample," specifically multiple standard ore samples with a grade of the grade sorting threshold G% and a thickness of the maximum thickness T-max. Producing multiple parallel samples is optimal to reduce system error. Producing a continuous batch of samples with varying penetration difficulty (thickness between or slightly exceeding the range [T-min, T-max], and grade between or slightly exceeding the range [0, G%]) to facilitate imaging comparisons of ores of different grades and thicknesses is optimal. Specifically, in step S2 of this embodiment, the preparation of multiple standard ore samples with a target mineral element grade of the grade sorting threshold G% and a thickness of the maximum thickness T-max involves selecting target mineral element powder particles and gangue powder particles from the ore in desired proportions and grinding them. After grinding, the target ore is pressed into a graphite mold according to the spatial distribution characteristics of the target ore, and then sintered to obtain the desired multiple standard ore samples. Specifically, in this example, three or more standard samples were prepared in parallel for each ore thickness and grade. Quantities of target mineral element powder particles and gangue powder particles were weighed separately. The powders were first mixed and ground in an agate mortar. GR ethanol solution was added during grinding to improve grinding efficiency. The mixed powder suspension was placed in a tungsten carbide grinding jar, filled with tungsten carbide balls, and ground in an MM400 planetary ball mill. After ball milling, the uniformly mixed metal ore and gangue powders were placed in a custom graphite mold and pre-pressed. The mold containing the mixed powders was then placed in a spark plasma sintering furnace for sintering. Using the custom graphite mold, the ground powder samples of varying grades were then sintered to produce ore standard samples of the desired thickness and grade. When the sorted ore exhibits distinct spatial distribution patterns (non-uniform distribution, such as in vein-like ore), sample preparation should mimic these distribution patterns as closely as possible. Figure 3 This is an example of an XRT image of a standard ore sample in an embodiment of the present invention. The standard ore sample is specifically a piece of lead ore with a thickness of 6 cm and a grade of 3%.

[0038] To distinguish between ores with grades below and above G%, the XRT ore sorter's X-rays must be able to penetrate at least the "hardest-to-penetrate samples." Since tube voltage determines X-ray penetration, we first determine the "lowest tube voltage" required to penetrate the "hardest-to-penetrate samples." Specifically, we first adjust the ore speed (conveyor belt speed) to a low value so that a low tube current, such as 2mA, can still adequately illuminate the ore. Then, we adjust the X-ray tube voltage within a reasonable range and observe the XRT images of the "hardest-to-penetrate samples" at different tube voltages to determine whether they are penetrated. At low tube voltages, the X-ray energy is insufficient to penetrate the sample, resulting in a pure black XRT image (average value of 0). Figure 4 This is an example of an XRT image of a standard ore sample when the tube voltage is too low in this embodiment. At this point, the X-ray energy is insufficient to penetrate the standard ore sample, as evidenced by the grayscale average value of the standard ore sample approaching zero or the detector noise floor intensity. When the tube voltage exceeds a certain value, the X-ray energy is sufficient to penetrate the sample, and the XRT image of the sample gradually turns gray (with the average value exceeding a certain threshold), indicating that the sample has been penetrated. This tube voltage represents the minimum tube voltage required to penetrate the "most difficult sample." If the XRT ore sorter uses a tube voltage lower than the stated minimum, waste ore may not be penetrated, making it impossible to distinguish it from concentrate. Excessively high tube voltages increase the risk of radiation leakage and electricity costs. Therefore, the tube voltage of the XRT ore sorter can be set to the stated minimum tube voltage, or slightly higher. Specifically, in step S3 of this embodiment, the function expression for adjusting the XRT ore sorter's tube voltage and observing the XRT ore sorter's image until the minimum tube voltage at which the XRT ore sorter's radiation can penetrate the standard ore sample is:

[0039] ，

[0040] In the above formula, is the minimum tube voltage, is the tube voltage, is the number of standard ore samples, When the tube voltage is The XRT image of the standard ore sample The gray value of a pixel, is a preset grayscale value threshold, which has a value range of 0 to 255 and is generally a smaller value close to 0, for example, 20 in this embodiment.

[0041] After determining the tube voltage, setting the tube current is equally important. Tube current determines the density of X-rays. A too low tube current results in insufficient X-ray exposure to the ore, creating numerous "noise points" and resulting in a poor signal-to-noise ratio in the XRT image, hindering accurate sorting. Generally, the tube current should be proportional to the ore conveyor speed. Therefore, we first adjust the belt speed to the ideal or expected maximum. Next, we adjust the tube current to ensure the signal-to-noise ratio of the ore flow is above a certain threshold. At low tube currents, the X-ray density (flux) is insufficient to uniformly illuminate the sample. Consequently, every point on the sample has a probability of not being detected by the X-rays, resulting in large variance in the XRT images across different inspection batches. When the tube current exceeds a certain value, the X-ray density is high enough to uniformly illuminate every point on the ore. At this point, the XRT images are relatively stable (with variance below a certain threshold), indicating that the sample can be inspected effectively. This is the minimum tube current that achieves "uniform ore illumination." If the XRT ore sorter uses a tube current lower than the minimum stated, the ore may not be penetrated uniformly, resulting in more noise on the XRT display and reduced sorting effect. Figure 5 This is an example of an XRT image of a standard ore sample when the tube current is too low in this embodiment. At this point, the tube current is too low and the X-ray dose is too low, resulting in poor imaging contrast, manifested as a high variance in the ore image. Excessively high tube currents can overexpose the image and increase the risk of radiation leakage and electricity costs. Therefore, the tube current of the XRT ore sorter can be set to the minimum tube current, or slightly higher than the minimum tube current. Specifically, in step S3 of this embodiment, the tube current of the XRT ore sorter is adjusted and the XRT ore sorter imaging is observed until the minimum tube current at which the XRT ore sorter's radiation can penetrate each position of the standard ore sample is found. The function expression is:

[0042] ,

[0043] In the above formula, is the minimum tube current, is the tube current, When the tube current is The average value of the gray value variance and background variance of the XRT image of the standard ore sample is is the preset grayscale value variance threshold. The setting of grayscale value variance threshold is related to the production process of standard samples. The more uniform the standard samples are, the lower the grayscale value variance threshold can be. .

[0044] In this embodiment, when a plurality of standard ore samples are fed into the XRT ore sorter for imaging, the belt speed of the XRT ore sorter is adjusted to a preset target speed. The purpose of this is to determine the belt speed corresponding to the minimum tube voltage and minimum tube current, so that the minimum tube voltage and minimum tube current can be dynamically adjusted according to the actual belt speed to meet actual needs. For example, when the belt speed is reduced to half, the tube current can also be appropriately reduced to half, that is, the tube current scales in proportion to the belt speed change.

[0045] After step S4, this embodiment further includes setting the tube voltage of the XRT ore sorter to the minimum tube voltage, setting the tube current to the minimum tube current, and feeding the target ore into the XRT ore sorter for imaging sorting.

[0046] In this embodiment, when the target ore is fed into the XRT ore sorter for imaging sorting, the belt speed of the XRT ore sorter is obtained after adjusting the belt speed of the XRT ore sorter for imaging sorting the target ore. , set the belt speed Divide by target speed An adjustment coefficient is obtained, and the tube voltage of the XRT ore sorter is set to the product of the minimum tube voltage and the adjustment coefficient, and the tube current is set to the product of the minimum tube current and the adjustment coefficient.

[0047] In one embodiment, an XRT ore sorter was used to sort lead and zinc ore. Before using the method of this embodiment, the tube voltage and current were set to 190 kV, 12 mA, and a power of 2280 W, respectively, based on manual judgment on site. After using the method of this embodiment, the minimum configuration was 160 kV, 6 mA, reducing the power to 57.9% and the radiation risk to 84.3%. It is worth noting that radiation risk is not linearly inversely proportional to power: when the power drops to a certain level, the energy of most of the emitted X-rays is lower than that of the lead box used for radiation isolation, and radiation leakage is almost zero.

[0048] In summary, the lack of a standardized, scientific method for setting the tube voltage and current, key parameters of X-ray tubes in XRT ore sorters, addresses the current issue. The ore sorter equipment calibration method of this embodiment aims to design an implementable, scientific, and standardized process for confirming the tube voltage and current parameters in XRT ore sorters. Following the process proposed in this embodiment, the appropriate tube voltage and current can be quickly, scientifically, standardized, and targeted to the properties of the target ore. This allows the XRT ore sorter to achieve excellent sorting results while maintaining low radiation safety risks and electricity costs, and also enables dynamic self-adaptation of belt speed.

[0049] In addition, this embodiment also provides an equipment calibration system for an ore sorter, comprising a microprocessor and a memory connected to each other, wherein the microprocessor is programmed or configured to execute the equipment calibration method for the ore sorter.

[0050] In addition, this embodiment also provides a computer-readable storage medium, in which a computer program or instruction is stored. The computer program or instruction is programmed or configured to execute the equipment calibration method of the ore sorting machine through a processor.

[0051] In addition, this embodiment also provides a computer program product, including a computer program or instructions, which are programmed or configured to execute the equipment calibration method of the ore sorting machine through a processor.

[0052] Those skilled in the art should understand that the technical solutions provided by the embodiments of the present application may be in the form of methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may take the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, may be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer-readable memory produce a product including the instruction device, which implements the function specified in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0053] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for calibrating an ore sorter, characterized in that: The steps include: S1, according to the type, grade and thickness distribution of the target ore to be sorted, determine the target mineral element type, grade sorting threshold G%, and the maximum thickness T-max of the ore to be sorted; S2, preparing multiple standard ore samples with target mineral element grade being the grade separation threshold G% and thickness being the maximum thickness T-max; S3, sending multiple standard ore samples into the XRT ore sorter for imaging, and adjusting the tube voltage of the XRT ore sorter to observe the imaging of the XRT ore sorter until the minimum tube voltage at which the XRT ore sorter's rays can penetrate the standard ore samples is found, and adjusting the tube voltage of the XRT ore sorter to observe the imaging of the XRT ore sorter until the minimum tube voltage at which the XRT ore sorter's rays can penetrate the standard ore samples is found. The function expression of the minimum tube voltage is: ， In the above formula, is the minimum tube voltage, is the tube voltage, is the number of standard ore samples, When the tube voltage is The XRT image of the standard ore sample The gray value of a pixel, is the preset gray value threshold; S4, setting the tube voltage of the XRT ore sorter to the minimum tube voltage, feeding a plurality of standard ore samples into the XRT ore sorter for imaging, and adjusting the tube current of the XRT ore sorter to observe the imaging of the XRT ore sorter until the minimum tube current at which the XRT ore sorter's rays can penetrate each position of the standard ore sample is found, and adjusting the tube current of the XRT ore sorter to observe the imaging of the XRT ore sorter until the minimum tube current at which the XRT ore sorter's rays can penetrate each position of the standard ore sample is found. The function expression of the minimum tube current at which the XRT ore sorter's rays can penetrate each position of the standard ore sample is: ， In the above formula, is the minimum tube current, is the tube current, When the tube current is The average value of the gray value variance and background variance of the XRT image of the standard ore sample is is the preset gray value variance threshold.

2. The equipment calibration method of the ore sorting machine according to claim 1, characterized in that: The grade separation threshold G% in step S1 refers to the threshold used to classify ore into concentrate ore and waste ore. Ore with a grade greater than the grade separation threshold G% is concentrate ore, otherwise it is waste ore.

3. The equipment calibration method of the ore sorting machine according to claim 1, characterized in that: In step S2, when preparing multiple standard ore samples with a target mineral element grade of the grade sorting threshold G% and a thickness of the maximum thickness T-max, the method includes selecting target mineral element powder particles and gangue powder particles of the ore in the required proportion and grinding them; after grinding, they are loaded into a graphite mold according to the spatial distribution characteristics of the target ore and pressed into shape, and then sintered to obtain the required multiple standard ore samples.

4. The equipment calibration method of the ore sorting machine according to claim 1, characterized in that: The step of feeding a plurality of standard ore samples into the XRT ore sorter for imaging also includes adjusting the belt speed of the XRT ore sorter to a preset target speed. .

5. The equipment calibration method of the ore sorting machine according to claim 1, characterized in that: After step S4, the tube voltage of the XRT ore sorter is set to the minimum tube voltage, the tube current is set to the minimum tube current, and the target ore is fed into the XRT ore sorter for imaging sorting. When the target ore is fed into the XRT ore sorter for imaging sorting, the belt speed of the XRT ore sorter is obtained after adjusting the belt speed of the XRT ore sorter for imaging sorting the target ore. , set the belt speed Divide by target speed An adjustment coefficient is obtained, and the tube voltage of the XRT ore sorter is set to the product of the minimum tube voltage and the adjustment coefficient, and the tube current is set to the product of the minimum tube current and the adjustment coefficient.

6. An equipment calibration system for an ore sorting machine, comprising a microprocessor and a memory connected to each other, characterized in that: The microprocessor is programmed or configured to execute the equipment calibration method for an ore sorting machine according to any one of claims 1 to 5.

7. A computer-readable storage medium having a computer program or instruction stored therein, characterized in that: The computer program or instructions are programmed or configured to execute the equipment calibration method of the ore sorting machine according to any one of claims 1 to 5 through a processor.

8. A computer program product comprising a computer program or instructions, characterized in that The computer program or instructions are programmed or configured to execute the equipment calibration method of the ore sorting machine according to any one of claims 1 to 5 through a processor.

Images