A material flow tracking method and system for continuous production

Abstract

The present application belongs to the field of production management system, and particularly relates to a material flow tracking method and system for continuous production. Scheduling plan information is established according to a beneficiation production process; data collection on the beneficiation production process state is performed through a real-time database, and ore distribution information for each shift is configured; material distribution of a cylindrical silo is calculated; material distribution of a U-shaped silo is calculated; and the material distribution of the cylindrical silo and the material distribution of the U-shaped silo are visualized. The present application realizes calculation of material distribution under continuous feeding, helps enterprise personnel to master real-time production conditions of materials, and plays an auxiliary role for personnel to make production decisions.

Description

Technical Field

[0001] This invention belongs to the field of production management systems, specifically a material flow tracking method and system for continuous production. Background Technology

[0002] In continuous production processes, production workshops typically process materials in batches. After passing through buffer devices such as silos and storage cabinets, materials from different batches become mixed together. For the company's own management needs, batch tracking is required to monitor each batch of materials from input to output.

[0003] The mineral processing production process uses ore as raw material and involves processes such as crushing, grinding, flotation, filtration, and finishing to produce concentrate. After crushing, the ore is generally buffered in a cylindrical silo or U-shaped silo and then conveyed to the ball mill via a feed belt.

[0004] In mining enterprises, raw material input and testing are typically carried out on a shift basis, meaning that the raw ore for each shift has tested grade indicators. Since silos or U-shaped bins store ore from multiple shifts, production scheduling needs to know the distribution of raw ore in each bin—that is, which shifts' raw ore is in each bin and what its grade is. Because the raw ore from different shifts is buffered within the bins, only a rough estimate of the ore distribution for each shift can be made, and production scheduling often relies on experience for estimation.

[0005] The grade of raw ore is a key indicator affecting the subsequent production of concentrate. Therefore, understanding the distribution of ore in each bin and accurately blending and transporting it to subsequent processes is an urgent need in mineral processing. Summary of the Invention

[0006] Existing production management systems lack methods for tracking ore flow. This invention, taking mineral processing in the mining industry as an example, proposes a material flow tracking method for continuous production and implements it through a system.

[0007] The technical solution adopted by this invention to achieve the above objectives is: a material flow tracking method for continuous production, comprising the following steps:

[0008] Establish shift scheduling information based on the mineral processing production process;

[0009] Data on the status of the mineral processing production process is collected through a real-time database, and ore blending information for each shift is configured.

[0010] Calculate the material distribution in the silo;

[0011] Calculate the material distribution in the U-shaped silo;

[0012] Visualize the material distribution in cylindrical silos and U-shaped silos.

[0013] The scheduling information is a sequence of shifts set according to time; based on the order of time, the first shift is set as the bottom layer and the last shift is set as the top layer.

[0014] The mineral processing production process status data includes:

[0015] Material distribution data in the silo: material level at four points inside the silo, instantaneous flow rate of the feed conveyor belt, and cumulative flow rate;

[0016] Material distribution status data of U-shaped bins: instantaneous flow rate, cumulative flow rate of the conveyor belt, bin number, material level height at four points in each U-shaped bin, feeder on / off status, feeder alarm status, bottom belt frequency of the frame conveyor, current of the frame conveyor, instantaneous flow rate of the feeder belt, and cumulative flow rate of the feeder belt.

[0017] S2: Calculate the material distribution in the silo. This method may include the following steps:

[0018] S2-0: Stores the latest ore quantity information for each shift, i.e. the ore distribution in the silo at the previous moment;

[0019] S2-1: Based on the cumulative flow of the feed belt collected at the current time and the previous time, the ore output at the current time is obtained, which is the amount of ore given to the feed belt at the bottom of the silo each time.

[0020] S2-2: From the bottom shift to the top shift, subtract the ore output from each layer to obtain the updated ore output for each layer;

[0021] S2-3: Based on the collected material level height, obtain the average material level height and correct the amount of ore at the top layer;

[0022] S2-4: Based on the shift schedule information, determine the shift to which the current time belongs;

[0023] If a shift change occurs, meaning the current shift is not the same as the shift for the top layer of ore, then a new shift's data will be generated.

[0024] If a shift change occurs, the results of S2-3 will be used as the new data for the night shift.

[0025] S2-3: Based on the collected average material level height, correct the amount of ore at the top layer, including the following steps:

[0026] The average material level is obtained based on the collected material level heights, and this average is used as the latest total ore volume in the U-shaped silo.

[0027] Total ore volume in a U-shaped silo = Average height of collected material level * Specific gravity

[0028] From the bottom to the top, the total ore quantity of the latest U-shaped bin is reduced by the ore quantity of each layer. When calculating to the top layer, the remaining ore quantity is used as the ore quantity of the top layer.

[0029] S3: Calculating the material distribution in the U-shaped silo includes the following steps:

[0030] S3-1: Based on the cumulative flow of the feed conveyor belt collected at the current time and the previous time, the current ore output of the feed conveyor belt is obtained, and then the ore output of the collection conveyor belt and the ore output of the U-shaped silo conveyor belt are obtained.

[0031] S3-2: Subtract the ore output from each layer sequentially from the bottom to the top to obtain the updated ore output for each layer;

[0032] S3-3: Obtain the average material level height based on the collected material level height, and correct the amount of ore at the top layer;

[0033] S3-4: Compare the top-level shift data calculated in S3-3 with the bottom-level shift data of the silo before the current time set time range; if they are not equal, it means that a shift change has occurred, then use the bottom-level shift of the silo before the current time set time range as the top-level shift of the U-shaped silo.

[0034] S3-2 or S3-2: Subtracting the ore output from each layer sequentially from the bottom to the top, including the following steps:

[0035] Iterate through each shift from the bottom to the top;

[0036] If the amount of ore in this layer is greater than the amount of ore output, it means that the amount of ore in this layer is sufficient for ore output. In this case, the amount of ore in this layer minus the amount of ore output is used as the new amount of ore in this layer. That is, the new amount of ore in this layer = the amount of ore in this layer - the amount of ore output.

[0037] If the amount of ore in this layer is less than the amount of ore output, it means that the amount of ore in this layer is not enough for ore input. In this case, all the ore in this layer is input, and the remaining amount is 0. The amount of ore output is reduced by the amount of ore in this layer to get the new amount of ore output. The new amount of ore output is then compared with the amount of ore in the previous layer until the new amount of ore output is subtracted in a certain layer.

[0038] S3-3: Obtain the average material level height based on the collected material level height, and correct the amount of ore at the top layer, including the following steps:

[0039] Total ore volume in a U-shaped silo = Average height of collected material level * Specific gravity

[0040] From the bottom to the top, the total ore quantity of the U-shaped bin is subtracted from the ore quantity of each layer in turn. When the calculation reaches the top layer, the remaining ore quantity is used as the ore quantity of the top layer.

[0041] The visualization of material distribution in cylindrical silos and U-shaped silos includes the following steps:

[0042] The system graphically displays the ore shift, business date, and ore quantity at different levels of the storage bin;

[0043] Use a bar chart as a graphical control for storage locations. The horizontal axis represents the storage location number, and the vertical axis represents the ore quantity at different layers. Assign values ​​to the bar chart so that different color stages in the bar chart represent the ore quantity at different layers.

[0044] A material flow tracking system for continuous production includes a memory and a processor; the memory is used to store a computer program; the processor is used to implement the material flow tracking method for continuous production when the computer program is executed.

[0045] The present invention has the following beneficial effects and advantages:

[0046] 1. This invention enables the calculation of material distribution under continuous feeding conditions, helping enterprise personnel to grasp the real-time production status of materials and playing an auxiliary role in making production decisions. Attached Figure Description

[0047] Figure 1 Flowchart of a material flow tracking method and system for continuous production according to the present invention;

[0048] Figure 2 This invention provides a flowchart of a material flow tracking method and system for continuous production, implemented in a cylindrical silo.

[0049] Figure 3 This invention provides a U-shaped warehouse implementation flowchart for a material flow tracking method and system for continuous production. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0051] See Figure 1 , Figure 1 This is a flowchart illustrating an implementation of a material flow tracking method and system for continuous production according to the present invention. The method may include the following steps:

[0052] S0: Enter the shift schedule information into the system.

[0053] The shift schedule is the daily working hours for each shift in the factory. The system stores the business date, shift number, start time, and end time. For example, December 24, 2021, day shift, 8:00, 16:00; December 24, 2021, night shift, 16:00, 8:00.

[0054] The shift scheduling plan allows other modules to query which shift is currently in operation based on the current time.

[0055] S1: Data is collected from the control system via a real-time database. Data is entered into the production management system.

[0056] S1-1: Data from the control system is acquired through a real-time database. This method may include the following steps:

[0057] First, the real-time database collects data from the PLC and control system via the OPC protocol. Then, the data acquisition module collects the data from the real-time database and saves it to the relational database.

[0058] To calculate the material distribution in the silo, the data collected via the OPC protocol includes the material level at four points inside the silo, the instantaneous flow rate of the feed conveyor, and the cumulative flow rate.

[0059] To calculate the material distribution in the U-shaped silos, the data collected via the OPC protocol includes the instantaneous flow rate and cumulative flow rate of the conveyor belt, the silo number, the material level height at four points within each U-shaped silo, the feeder's on / off status, the feeder's alarm status, the frequency of the bottom belt of the frame conveyor, the current of the frame conveyor, the instantaneous flow rate of the feed conveyor, and the cumulative flow rate of the feed conveyor.

[0060] The real-time database collects control system data every second.

[0061] The data acquisition module collects real-time database data every 30 seconds. If the collection fails, the data acquisition module uses the previous collection result as the current collection result.

[0062] S1-2: Enter data through the production management system.

[0063] Enter the ore blending information for each shift. The system stores information such as shift, output, number of vehicles, geological grade, ferrous grade, output grade, CFE grade, ratio, yield, pipe finishing, grinding time, shift, planned time, innovator, and remarks.

[0064] S2: Calculate the material distribution in the silo, see [link / reference] Figure 2 , Figure 2 This is a flowchart of a material flow tracking method and system for continuous production based on the present invention, implemented in a silo. The method may include the following steps:

[0065] S2-0: Query the latest ore quantity for each layer stored in the system, i.e., sequence number, shift, business date, and ore quantity. This is the ore distribution of the silo at the previous moment.

[0066] S2-1: Calculate the ore output for each time, that is, the amount of ore given to the feed belt at the bottom of the silo each time.

[0067] Ore output = Cumulative flow rate of the feed conveyor belt collected – Cumulative flow rate of the feed conveyor belt collected in the previous period

[0068] S2-2: Subtract the ore output from each layer, from bottom to top. Obviously, the ore at the bottom of the silo will be used first. If the ore quantity of a certain layer is 0, it means that the ore quantity of this layer has been used up, and the system will no longer store it.

[0069] From the bottom to the top, if the amount of ore in a given layer is greater than the amount of ore output, it means there is enough ore for output. The new amount of ore in this layer is calculated by subtracting the amount of ore output from the current ore amount. That is, the new amount of ore in this layer = current ore amount - ore output. If the amount of ore in a given layer is less than the amount of ore output, it means there is not enough ore for input. All ore in this layer is input, leaving a remainder of 0. The new amount of ore output is calculated by subtracting the current ore amount from the current ore amount. This new amount of ore output continues to be compared with the ore amount of the previous layer until it is subtracted at some layer.

[0070] by Figure 2 For example, if the ore distribution of the U-shaped bin from bottom to top at the previous moment is as follows: 200 kg of ore for day shift 20211223, 900 kg of ore for night shift 20211223, and 500 kg of ore for day shift 20211224.

[0071] If the ore output this time is 1000 kg, it means that 1000 kg of ore flowed out this time. Starting from the bottom layer, the day shift (20211223) had 200 kg remaining from the previous shift. With 1000 kg flowing out this time, the remaining amount for day shift (20211223) is 0, meaning it's used up. There are 1000 - 200 = 800 kg unallocated. Moving upwards, the night shift (20211223) had 900 kg remaining from the previous shift. Therefore, the remaining amount for this shift is 900 - 800 = 100 kg.

[0072] After processing, the original bottom day shift 20211223 ore quantity was depleted, the night shift 20211223 ore quantity remained at 100 kg, and the day shift 20211224 ore quantity remained unchanged at 500 kg.

[0073] S2-3: Calculate the average value of the collected material level height and correct the amount of ore at the top layer using the latest material level.

[0074] During the ore production process, there will be actual situations such as ore falling during feeding and ore gap compaction. Therefore, after the S2-2 calculation, the collected material level height should still be used as the latest total ore volume of the U-shaped bin.

[0075] Total ore volume in a U-shaped silo = Average height of collected material level * Specific gravity

[0076] From the bottom to the top, the total ore volume of the U-shaped bin is reduced by the ore volume of each layer. When calculating to the top layer, the remaining ore volume is used as the ore volume of the top layer.

[0077] by Figure 2 For example, based on the calculation results of S2-2, the ore distribution in the U-shaped silo from bottom to top is as follows: 100 kg of ore remains for the night shift (20211223), and the ore quantity for the day shift (20211224) remains unchanged at 500 kg. If the total ore quantity in the U-shaped silo converted from the average material level is 590 kg, then the remaining 100 kg of ore for the bottom night shift (20211223) reduces the total ore quantity in the U-shaped silo by 100 kg to 490 kg, which is then used as the ore quantity for the top day shift (20211224).

[0078] S2-4: Based on the S0 shift schedule data, determine which shift the current time belongs to. If a shift change occurs, meaning the current shift is not the same as the shift for the top layer of ore, then generate a new shift's data.

[0079] If a shift change occurs, the current shift is the night shift, 20211224. Figure 2 For example, based on the calculation results of S2-2 and S2-3, if the total ore quantity of the U-shaped bin converted from the average material level height is 700 kg, the remaining ore quantity of the bottom night shift 20211223 is 100 kg, and the remaining ore quantity of the top day shift 20211224 is 500 kg, then 700–100–500, the remaining 100 kg data is used as the ore quantity of the night shift 20211224, and the system stores the 100 kg of the night shift 20211224 as the new data.

[0080] S2-5: The system stores the shift, business date, ore quantity, and sequence number of each layer as the calculation result for this time.

[0081] S3: Calculate the material distribution in the U-shaped silo. This method may include the following steps:

[0082] S3-1: Calculate the ore output of the feed conveyor belt = Cumulative flow rate of the feed conveyor belt – Cumulative flow rate of the feed conveyor belt in the previous measurement

[0083] The ore output of the collecting belts is calculated by working backwards, since multiple collecting belts supply ore to a single feeding belt. The ore output of each collecting belt is calculated based on the instantaneous power ratio of the collecting belts. Under stable voltage conditions, the heavier the ore on the collecting belt, the greater the instantaneous current. Therefore, the ore output of each collecting belt is calculated as the ratio of the collected belt's bottom frequency to the collected belt's instantaneous current. For example, if the feeding belt's ore output is 1000 kg, and the collected belt's bottom frequency * instantaneous current is 4, and the collected belt's bottom frequency * instantaneous current is 6, then proportionally, the ore output of collecting belt 1 is 400 kg, and the ore output of collecting belt 2 is 600 kg.

[0084] The output of ore from the U-shaped silo conveyor belt is determined by working backwards. Since multiple U-shaped silos can supply ore to a single ore-collecting conveyor belt, but only one U-shaped silo can be activated at a time, the output ore volume of which U-shaped silo is determined by the status of its feeder switch. For example, if the ore output of the #1 ore-collecting conveyor belt is 400 kg, and the feeder switch of the #1 U-shaped silo is activated, then the ore output of the #1 U-shaped silo is 400 kg.

[0085] S3-2: Subtract the ore output from each layer, from bottom to top. Obviously, the ore at the bottom of the U-shaped silo will be used first. If the ore quantity of a certain layer is 0, it means that the ore quantity of this layer has been used up, and the system will no longer store it.

[0086] From the bottom to the top, if the amount of ore in a given layer is greater than the amount of ore output, it means there is enough ore for output. The new amount of ore in this layer is calculated by subtracting the amount of ore output from the current ore amount. That is, the new amount of ore in this layer = current ore amount - ore output. If the amount of ore in a given layer is less than the amount of ore output, it means there is not enough ore for input. All ore in this layer is input, leaving a remainder of 0. The new amount of ore output is calculated by subtracting the current ore amount from the current ore amount. This new amount of ore output continues to be compared with the ore amount of the previous layer until it is subtracted at some layer.

[0087] by Figure 3 For example, the ore distribution in the U-shaped bin on the left side from bottom to top is as follows: 200 kg of ore for day shift 20211223, 900 kg of ore for night shift 20211223, and 500 kg of ore for day shift 20211224.

[0088] If the ore output is 1000 kg, then the processing will start from the bottom day shift 20211223. After processing, the original bottom day shift 20211223 will have been depleted, the night shift 20211223 will have 100 kg of ore remaining, and the day shift 20211224 will remain unchanged at 500 kg.

[0089] S3-3: Calculate the average value of the collected material level height and correct the amount of ore at the top layer using the latest material level.

[0090] During the ore production process, there will be actual situations such as ore falling during feeding and ore gap compaction. Therefore, after the calculation in S3-2, the collected material level height should still be used as the latest total ore volume of the U-shaped bin.

[0091] Total ore volume in a U-shaped silo = Average height of collected material level * Specific gravity

[0092] From the bottom to the top, the total ore volume of the U-shaped bin is reduced by the ore volume of each layer. When calculating to the top layer, the remaining ore volume is used as the ore volume of the top layer.

[0093] by Figure 3 For example, based on the calculation results of S3-2, the ore distribution in the U-shaped bin on the left, from bottom to top, shows that the remaining ore quantity for shift 20211223 is 100 kg, and the ore quantity for shift 20211224 remains unchanged at 500 kg. The total ore quantity in the U-shaped bin, converted from the average material level height, is 590 kg. Therefore, the remaining ore quantity for shift 20211223 at the bottom is 100 kg, and the total ore quantity in the U-shaped bin minus 100 kg is 490 kg, which is taken as the ore quantity for shift 20211224 at the top.

[0094] S3-4: Since it takes 30 minutes for the ore to flow from the cylindrical silo to the U-shaped silo, the top-level data shift calculated in S3-3 is compared with the bottom-level shift of the cylindrical silo 30 minutes ago. If they are not equal, it means that a shift change has occurred. In this case, the bottom-level shift of the cylindrical silo 30 minutes ago is used as the top-level shift of the U-shaped silo.

[0095] by Figure 3 For example, after calculation by S3-3, the top layer of the U-shaped warehouse is the day shift 20211224. Then, subtract 30 minutes from the current time and query the bottom layer data of the cylindrical warehouse, which is the night shift 20211225. This means that a shift change has occurred. Use the night shift 20211225 to update the day shift 20211224 as the top layer data of the U-shaped warehouse.

[0096] S3-5: The system stores the shift, business date, ore quantity, and sequence number of each layer as the calculation result for this time.

[0097] S4: Graphically display the material distribution in silos and U-shaped silos. This method may include the following steps:

[0098] The system server was developed using the JAVA language, and E-CHARTS was used as the front-end HTML5 component to graphically display the ore shift, business date, and ore quantity for different layers of the ore bin.

[0099] Use the bar chart in E-CHARTS as a graphical control for warehouse locations. The horizontal axis represents the warehouse number of different warehouses, and the vertical axis represents the ore quantity of different layers. After assigning values ​​to the bar chart in E-CHARTS, the different color stages displayed in the bar chart represent the ore quantity of different layers.

[0100] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, apparatus, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0101] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A system that specifies functions in one or more boxes.

[0102] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including an instruction set implemented in a process. Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0103] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1The steps of the functions specified in one or more boxes. Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the invention.

[0104] The above embodiments merely illustrate several implementation methods of this application, and their descriptions are relatively specific or detailed. However, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of the embodiments of this application should be determined by the claims.

Claims

1. A material flow tracking method for continuous production, characterized in that, Includes the following steps: Establish shift scheduling information based on the mineral processing production process; Data on the status of the mineral processing production process is collected through a real-time database, and ore blending information for each shift is configured. Calculate the material distribution in the silo; Calculate the material distribution in the U-shaped warehouse; Visualize the material distribution in cylindrical silos and U-shaped silos; S2: Calculate the material distribution in the silo. This method may include the following steps: S2-0: Stores the latest ore quantity information for each shift, i.e. the ore distribution in the silo at the previous moment; S2-1: Based on the cumulative flow of the feed belt collected at the current time and the previous time, the ore output at the current time is obtained, which is the amount of ore given to the feed belt at the bottom of the silo each time. S2-2: From the bottom shift to the top shift, subtract the ore output from each layer to obtain the updated ore output for each layer; S2-3: Based on the collected material level height, obtain the average material level height and correct the amount of ore at the top layer; S2-4: Based on the shift schedule information, determine the shift to which the current time belongs; If a shift change occurs, meaning the current shift is not the same as the shift for the top layer of ore, then a new shift's data will be generated. If a shift change occurs, the results of S2-3 will be used as the new data for the night shift.

2. The material flow tracking method for continuous production according to claim 1, characterized in that, The scheduling information is a sequence of shifts set according to time; based on the order of time, the first shift is set as the bottom layer and the last shift is set as the top layer.

3. The material flow tracking method for continuous production according to claim 1, characterized in that, The mineral processing production process status data includes: Material distribution data in the silo: material level at four points inside the silo, instantaneous flow rate of the feed conveyor belt, and cumulative flow rate; Material distribution status data of U-shaped bins: instantaneous flow rate, cumulative flow rate of the conveyor belt, bin number, material level height at four points in each U-shaped bin, feeder on / off status, feeder alarm status, bottom belt frequency of the frame conveyor, current of the frame conveyor, instantaneous flow rate of the feeder belt, and cumulative flow rate of the feeder belt.

4. The material flow tracking method for continuous production according to claim 1, characterized in that, S2-3: Based on the collected average material level height, correct the amount of ore at the top layer, including the following steps: The average material level is obtained based on the collected material level heights, and this average is used as the latest total ore volume in the U-shaped silo. Total ore volume in a U-shaped silo = average height of collected material level proportion From the bottom to the top, the total ore quantity of the latest U-shaped bin is reduced by the ore quantity of each layer. When calculating to the top layer, the remaining ore quantity is used as the ore quantity of the top layer.

5. A material flow tracking method for continuous production according to claim 1, characterized in that, S3: Calculating the material distribution in the U-shaped silo includes the following steps: S3-1: Based on the cumulative flow of the feed conveyor belt collected at the current time and the previous time, the current ore output of the feed conveyor belt is obtained, and then the ore output of the collection conveyor belt and the ore output of the U-shaped silo conveyor belt are obtained. S3-2: Subtract the ore output from each layer sequentially from the bottom to the top to obtain the updated ore output for each layer; S3-3: Obtain the average material level height based on the collected material level height, and correct the amount of ore at the top layer; S3-4: Compare the top-level shift data calculated in S3-3 with the bottom-level shift data of the silo before the current time set time range; if they are not equal, it means that a shift change has occurred, then use the bottom-level shift of the silo before the current time set time range as the top-level shift of the U-shaped silo.

6. A material flow tracking method for continuous production according to claim 1 or 5, characterized in that, S3-2 or S3-2: Subtracting the ore output from each layer sequentially from the bottom to the top, including the following steps: Iterate through each shift from the bottom to the top; If the amount of ore in this layer is greater than the amount of ore output, it means that the amount of ore in this layer is sufficient for ore output. In this case, the amount of ore in this layer minus the amount of ore output is used as the new amount of ore in this layer. That is, the new amount of ore in this layer = amount of ore in this layer - amount of ore output. If the amount of ore in this layer is less than the amount of ore output, it means that the amount of ore in this layer is not enough for ore input. In this case, all the ore in this layer is input, and the remaining amount is 0. The amount of ore output is reduced by the amount of ore in this layer to get the new amount of ore output. The new amount of ore output is then compared with the amount of ore in the previous layer until the new amount of ore output is subtracted in a certain layer.

7. A material flow tracking method for continuous production according to claim 1 or 5, characterized in that, S3-3: Obtain the average material level height based on the collected material level height, and correct the amount of ore at the top layer, including the following steps: Total ore volume in a U-shaped silo = average height of collected material level proportion From the bottom to the top, the total ore quantity of the U-shaped bin is subtracted from the ore quantity of each layer in turn. When the calculation reaches the top layer, the remaining ore quantity is used as the ore quantity of the top layer.

8. A material flow tracking method for continuous production according to claim 1, characterized in that, The visualization of material distribution in cylindrical silos and U-shaped silos includes the following steps: The system graphically displays the ore shift, business date, and ore quantity at different levels of the storage bin; Use a bar chart as a graphical control for storage locations. The horizontal axis represents the storage location number, and the vertical axis represents the ore quantity at different layers. Assign values ​​to the bar chart so that different color stages in the bar chart represent the ore quantity at different layers.

9. A material flow tracking system for continuous production, characterized in that, It includes a memory and a processor; the memory is used to store a computer program; the processor is used to implement, when executing the computer program, a material flow tracking method for continuous production as described in any one of claims 1-8.

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