A determination method and system for mixed ore tracking

Abstract

The present invention discloses a determination method and system for tracking mixed ore, the method comprising: determining whether a material bin has started feeding; if so, recording the current time, setting the material bin that has started feeding as the feeding bin; calculating the feeding duration of the feeding bin; and using the time after deducting the feeding duration from the current time as the actual feeding time of the mixed ore. The present invention determines the time when the material bin starts feeding by detection, and uses the time after deducting the feeding duration from the detected time when the material bin starts feeding as the actual feeding time of the mixed ore. The tracking result of the feeding time of the new mixed ore component is basically not delayed, the tracking result is more accurate, and the material batching is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of automatic batching control, and in particular to a determination method and system for mixed ore tracking. Background Art

[0002] In the sintering production process, in order to ensure the batching effect, the industry will carry out batching once, mix all the iron-containing materials to produce mixed mineral materials, and then use the mixed mineral materials as the main raw material for sintering batching. The proportion is high, the amount of materials is large, and multiple warehouses are required for storage, which has the greatest impact on the quality of sintered ore. When production is abnormal, it is necessary to understand the situation of the mixed ore used in the abnormal section, such as the feeding time of the mixed ore used. In traditional methods, when tracking mixed ore, the feeding situation can only be inferred by manually checking the curve and estimating the situation of the mixed ore feeding detection device.

[0003] However, the inventors of this application found that the above technology has at least the following technical problems in the process of implementing the technical solution of the invention in the embodiment of this application:

[0004] Since the newly-arrived mixed ore components need to circulate in the feed bin for a period of time, it takes a certain amount of time for the newly-arrived mixed ore components to reach the detection position of the feed detection device and cannot be immediately detected by the feed detection device. When the feed detection device detects the feeding, the feeding has actually started for a period of time, and the current time is not the accurate feeding time. The actual feeding time is earlier than the current time, which results in a delay in the tracking result of the feeding time. Summary of the invention

[0005] The embodiment of the present application solves the technical problem that the tracking results of the mixed ore feeding time in the prior art have delays by providing a method and system for determining the tracking of mixed ore. The new tracking results of the feeding time of the mixed ore components have basically no delay, the tracking results are more accurate, and the material batching is more accurate.

[0006] On the one hand, the present application provides the following technical solution through an embodiment of the present application:

[0007] A method for determining mixed ore tracking, comprising:

[0008] Determine whether the material bin has started feeding;

[0009] If yes, then record the current time and set the material bin where feeding starts as the feeding bin;

[0010] Calculating the feeding duration of the feeding bin;

[0011] The time obtained by subtracting the feeding duration from the current time is taken as the actual feeding time of the mixed ore.

[0012] Preferably, the mixed ore tracking determination method further includes:

[0013] The position of the feed bin at the actual feed time is obtained, and the end time of the allocation of the old material components is calculated according to the position of the bin at the actual feed time.

[0014] Preferably, the step of determining whether the material bin is feeding includes:

[0015] Check the position of the material warehouse at regular intervals;

[0016] If the currently detected bin position is larger than the last detected bin position, it is determined that the material bin is being fed.

[0017] Preferably, the mixed ore tracking determination method further includes:

[0018] If it is detected that the bin level of the feed bin is decreasing for multiple consecutive times, the first detection time among the multiple consecutive times is recorded.

[0019] Preferably, calculating the feeding duration of the feeding bin comprises:

[0020] Obtaining the material stacking angle of the feed bin at the current time;

[0021] The feeding duration is calculated according to the material accumulation angle.

[0022] Preferably, calculating the feeding duration according to the material accumulation angle comprises:

[0023]

[0024] ΔT is the feeding duration, γ is the material bulk density of the feeding bin, D is the bin body diameter of the feeding bin, α is the material stacking angle, and q is the discharge speed of the discharge belt of the feeding bin.

[0025] On the other hand, the present application also provides the following technical solutions:

[0026] A mixed ore tracking determination system, comprising:

[0027] Feed detection module, used to determine whether the material bin has started feeding;

[0028] The time recording module is used to record the current time if the material bin starts feeding, and set the material bin that starts feeding as the feeding bin;

[0029] A feeding duration calculation module, used for calculating the feeding duration of the feeding bin;

[0030] The feeding time calculation module is used to calculate the time obtained by subtracting the feeding duration from the current time as the actual feeding time of the mixed ore.

[0031] Preferably, the mixed ore tracking determination system further includes:

[0032] The allocation time calculation module is used to obtain the position of the feed bin at the actual feed time, and calculate the allocation end time of the old material component according to the position of the bin at the actual feed time.

[0033] On the other hand, the present application also provides the following technical solutions:

[0034] An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the determination method for mixed ore tracking described in any one of the above items is implemented.

[0035] On the other hand, the present application also provides the following technical solutions:

[0036] A computer-readable storage medium, which, when executed, implements any of the above-mentioned determination methods for mixed ore tracking.

[0037] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0038] The time when the material bin starts feeding is determined by detection, and the time after deducting the feeding duration from the detected material bin feeding start time is used as the actual feeding time of the mixed ore. The tracking result of the feeding time of the new mixed ore components has basically no delay, the tracking result is more accurate, and the material batching is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 It is a flow chart of the determination method of mixed ore tracking of the present invention;

[0041] Figure 2 This is a schematic diagram of feeding into a material bin of the present invention;

[0042] Figure 3 It is a structural block diagram of the determination system for mixed ore tracking of the present invention;

[0043] Figure 4It is a structural block diagram of the electronic device of the present invention.

[0044] Description of reference numerals:

[0045] 400 - bus; 401 - receiver; 402 - processor; 403 - transmitter; 404 - memory; 406 - bus interface. DETAILED DESCRIPTION

[0046] The embodiment of the present application solves the technical problem in the prior art that the tracking result of the mixed ore feeding time is delayed by providing a determination method for mixed ore tracking.

[0047] The technical solution of the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0048] A method for determining mixed ore tracking, comprising:

[0049] Determine whether the material bin has started feeding;

[0050] If yes, then record the current time and set the material bin where feeding starts as the feeding bin;

[0051] Calculating the feeding duration of the feeding bin;

[0052] The time obtained by subtracting the feeding duration from the current time is taken as the actual feeding time of the mixed ore.

[0053] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0054] First of all, the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0055] This embodiment provides a method for determining mixed ore tracking, such as Figure 1 As shown, including:

[0056] Step S1, determining whether the material bin starts feeding;

[0057] Step S2, if yes, record the current time and set the material bin where feeding starts as the feeding bin;

[0058] Step S3, calculating the feeding duration of the feeding bin;

[0059] Step S4, the time obtained by subtracting the feeding duration from the current time is taken as the actual feeding time of the mixed ore.

[0060] Generally, mixed ore needs to be stored in multiple bins, usually 5 cylindrical bins, and the 5 bins are fed in turn, so that only one bin is feeding at the same time. Figure 2 As shown in the figure, during feeding, the new mixed ore components enter the silo through the feeding belt above the silo, pass through the silo, and are discharged from the bottom of the silo through the discharging belt. The feeding speed of the feeding belt is much greater than the discharging speed of the discharging belt, and the discharging speed of the discharging belt is consistent with the discharging speed of the feeding silo. During feeding, the mixed ore components will flow in the silo for a period of time. The larger the silo, the longer the circulation time.

[0061] In step S1, considering that the feeding speed is much greater than the discharging speed, if a material bin starts feeding, the bin space in the bin will gradually increase. The so-called bin space can be equivalent to the weight of the material in the bin. In this way, by detecting the change in bin space in the bin, it can be determined whether the material bin starts feeding. When a material bin starts feeding, its bin space will increase. Therefore, the preferred step S1 of this embodiment includes:

[0062] Check the position of the material warehouse at regular intervals;

[0063] If the currently detected bin position is larger than the last detected bin position, it is determined that the material bin is being fed.

[0064] The certain time intervals may be equal intervals, i.e., periodic detection, and the detection period may be 3s. It may also be detected randomly at appropriate time intervals, such as 3s for the first time and 4s for the second time. However, periodic detection is preferred, and the detection logic is simple.

[0065] In this way, when the bin position detected this time is greater than the bin position detected last time, it proves that this material bin has started feeding. However, since the mixed ore components will circulate in the bin for a period of time during feeding, the current time corresponding to this test is not the actual feeding time, but has a certain delay.

[0066] In addition, because there are multiple storage bins for mixed ore, the traditional method is also unable to track which bin the mixed ore specifically enters. At the same time, because there are multiple storage bins for mixed ore, it is more difficult to judge the actual feeding time. In this embodiment, since there is only one bin feeding at the same time among multiple mixed ore bins, when the bin position detected this time is larger than the bin position detected last time, it is possible to track which bin the new mixed ore component has entered. Since multiple mixed ore bins are fed in sequence, when it is tracked which bin the new mixed ore component has entered, it can be determined that the previous bin has stopped feeding.

[0067] In step S3, the feeding duration refers to the time from the actual feeding time to the time when it is judged that the material bin starts feeding. In step S4, let the current time be T1, and the duration of the feeding of the feeding bin up to the current time be ΔT, and the actual feeding time be T0, then T0=T1-ΔT. In this way, this embodiment detects and judges the time when the material bin starts feeding, and uses the time after deducting the feeding duration from the detected time when the material bin starts feeding as the actual feeding time of the mixed ore. The tracking result of the feeding time of the new mixed ore components is basically not delayed, and the tracking result is more accurate. Further, the composition of this section of material can be brought into the sintering batching model for real-time calculation to make the material batching more accurate.

[0068] For step S3, this embodiment has found through experiments that the feeding duration is correlated with the material accumulation angle of the feeding bin. When the feeding starts, the material accumulation angle changes in real time with the feeding. The feeding duration is different and the material accumulation angle is different. In this way, the feeding duration can be calculated by the material accumulation angle. Figure 2 As shown, the material accumulation angle can be understood as follows: when feeding, the upper surface of the material is approximately an inverted cone, and the material accumulation angle is the angle between the generatrix of the cone and the side wall of the feed bin. Therefore, the preferred step S3 of this embodiment includes:

[0069] Get the material stacking angle of the feed bin at the current time;

[0070] Calculate the feeding duration based on the material accumulation angle.

[0071] In this way, the feeding duration can be calculated from the material accumulation angle to obtain the actual feeding time.

[0072] The relationship between the material accumulation angle and the feeding duration is affected by the configuration of the feed bin. If the feed bin is a rectangular parallelepiped or a cube, there is one method to calculate the feeding duration based on the material accumulation angle; if the feed bin is a cylinder, there is another method to calculate the feeding duration based on the material accumulation angle. The material bins in this embodiment are all cylindrical bins. It is found through experiments that the material accumulation angle and the feeding duration satisfy the relationship:

[0073]

[0074] ΔT is the feeding duration, γ is the material bulk density of the feed bin, D is the bin diameter of the feed bin, α is the material stacking angle, and q is the discharge speed of the discharge belt of the feed bin.

[0075] In this way, the feeding duration can be calculated by the above formula. In practical applications, the material bulk density γ, the feed bin diameter D, and the material stacking angle α can all be used as known values, and the discharge speed q can be detected in real time. The bulk density of a certain material γ = 2.3t / m 3, silo diameter D = 5m, material stacking angle α = 38°, discharge speed q = 200t / h, then ΔT = 3.14×2.3×5×5×5×ctan38°× T0=T1-0.42h.

[0076] In this embodiment, the goal of mixed ore tracking includes not only the actual feeding time of the new mixed ore component, but also the end feeding time of the new mixed ore component. It is easy to imagine that after the feeding is finished, the material bin will continue to reduce its position because it is always discharging materials, and then the change in the position can be used to determine when the feeding is finished. Therefore, the determination method of mixed ore tracking in this embodiment preferably also includes:

[0077] If the position of the feed bin is detected to be decreasing for multiple times in a row, the first detection time among the multiple times will be recorded.

[0078] Among them, when it is detected that the position of the feed bin is reduced, the feeding can be determined to be finished, and the time at this time is the feeding end time, and the feeding end time of the new mixed ore component is tracked. Considering the possibility of false detection in the detection of the position, if the time at this time is determined as the end feeding time when the position of the feed bin is detected to be reduced once, the feeding may continue while the position is misdetected, resulting in an error in the determination of the feeding end time. The present embodiment preferably determines the feeding end when the position of the feed bin is reduced for multiple consecutive times, which can avoid the possibility of misjudgment in one detection. It is better to detect multiple times for 2 or 3 times. At the same time, since the time interval between two consecutive detections is very small, the time when the position of the feed bin is detected to be reduced for the first time can be determined as the feeding end time, that is, the first detection time, and the time when the position of the feed bin is detected to be reduced for the second or third time can be determined as the feeding end time. Of course, the first detection time is more accurate.

[0079] In this embodiment, the target of mixed ore tracking also includes the start time of the new mixed ore component, that is, the time when the new mixed ore component starts to be discharged through the discharge belt. Considering that at the moment of the actual feeding time, all materials in the feed bin are old mixed ore components, then the end time of the old mixed ore component is the start time of the new mixed ore component. The determination method of mixed ore tracking in this embodiment also includes:

[0080] Get the position of the feed bin at the actual feeding time, and calculate the end time of the old material component based on the position of the bin at the actual feeding time.

[0081] Specifically, since the discharge speed of the discharge belt is known, the duration of the use of the old mixed ore component can be obtained by dividing the position at the actual feeding time by the discharge speed of the discharge belt. The duration of the use plus the actual feeding time is the end time of the use of the old mixed ore component, that is, the start time of the use of the new mixed ore component. In this way, the present embodiment can also track the start time of the use of the new mixed ore component by the position at the actual feeding time. When the next new mixed ore component starts to be fed, the end time of the use of the current new mixed ore component is the start time of the use of the next new mixed ore component.

[0082] The present application also provides a mixed ore tracking determination system, such as Figure 3 As shown, including:

[0083] Feed detection module, used to determine whether the material bin has started feeding;

[0084] The time recording module is used to record the current time if the material bin starts feeding, and set the material bin that starts feeding as the feeding bin;

[0085] A feeding duration calculation module, used for calculating the feeding duration of the feeding bin;

[0086] The feeding time calculation module is used to take the time obtained by subtracting the feeding duration from the current time as the feeding time of the mixed ore.

[0087] The mixed ore tracking determination system of the present application detects the time when the material bin starts feeding, and uses the time after deducting the feeding duration from the detected material bin feeding start time as the actual feeding time of the mixed ore. The tracking result of the feeding time of the new mixed ore components has basically no delay, and the tracking result is more accurate.

[0088] Furthermore, the determination system for tracking the mixed ore preferably also includes:

[0089] The allocation time calculation module is used to obtain the position of the feed bin at the actual feeding time, and calculate the allocation end time of the old material components according to the position of the bin at the actual feeding time.

[0090] In this way, the mixed ore tracking determination system of this embodiment can also track the start time of the allocation of new mixed ore components through the warehouse position at the actual feeding time.

[0091] Based on the same inventive concept as the determination method for mixed ore tracking in the above-mentioned embodiment, this embodiment also provides an electronic device, such as Figure 4 As shown, it includes a memory 404, a processor 402, and a computer program stored in the memory 404 and executable on the processor 402. When the processor 402 executes the program, the steps of any method of the determination method for mixed ore tracking described above are implemented.

[0092] Among them, Figure 4 In the embodiment of the present invention, a bus architecture (represented by bus 400) is shown, which may include any number of interconnected buses and bridges, and bus 400 links various circuits including one or more processors represented by processor 402 and memory represented by memory 404. Bus 400 may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. Bus interface 406 provides an interface between bus 400 and receiver 401 and transmitter 403. Receiver 401 and transmitter 403 may be the same element, namely a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 402 is responsible for managing bus 400 and general processing, while memory 404 may be used to store data used by processor 402 when performing operations.

[0093] Since the electronic device introduced in this embodiment is an electronic device used to implement the determination method for mixed ore tracking in the embodiment of this application, based on the determination method for mixed ore tracking introduced in the embodiment of this application, a person skilled in the art can understand the specific implementation of the electronic device of this embodiment and its various variations, so how the electronic device implements the method in the embodiment of this application is not described in detail here. As long as a person skilled in the art implements the electronic device used by the determination method for mixed ore tracking in the embodiment of this application, it belongs to the scope of protection of this application.

[0094] Based on the same inventive concept as the determination method for mixed ore tracking in the above-mentioned embodiment, this embodiment further provides a computer-readable storage medium, which, when executed, implements any of the above-mentioned determination methods for mixed ore tracking. When the computer-readable storage medium is executed,

[0095] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented 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.

[0096] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can 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 processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0097] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0098] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing 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.

[0099] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0100] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for determining mixed ore tracking, characterized in that: include: Determine whether the material bin has started feeding; The determining whether the material bin is being fed includes: detecting the bin position of the material bin once at a certain interval; if the bin position currently detected is greater than the bin position last detected, determining that the material bin is being fed; If yes, then record the current time and set the material bin where feeding starts as the feeding bin; Calculating the feeding duration of the feeding bin; Calculating the feeding duration of the feeding bin includes: obtaining the material accumulation angle of the feeding bin at the current time; calculating the feeding duration according to the material accumulation angle; the material accumulation angle is: when feeding, the upper surface of the material is approximately an inverted cone, and the material accumulation angle is the angle between the generatrix of the cone and the side wall of the feeding bin; Calculating the feeding duration according to the material accumulation angle includes: ； is the feeding duration, is the bulk density of the material in the feed bin, is the diameter of the feed bin, is the material accumulation angle, is the discharging speed of the discharging belt of the feeding bin; The time obtained by subtracting the feeding duration from the current time is taken as the actual feeding time of the mixed ore.

2. The determination method for mixed ore tracking according to claim 1, characterized in that: Also includes: The position of the feed bin at the actual feed time is obtained, and the end time of the allocation of the old material components is calculated according to the position of the bin at the actual feed time.

3. The determination method for mixed ore tracking according to claim 1, characterized in that: Also includes: If it is detected that the bin level of the feed bin is decreasing for multiple consecutive times, the first detection time among the multiple consecutive times is recorded.

4. A mixed ore tracking determination system, characterized in that: include: Feed detection module, used to determine whether the material bin has started feeding; The determining whether the material bin is being fed includes: detecting the bin position of the material bin once at a certain interval; if the bin position currently detected is greater than the bin position last detected, determining that the material bin is being fed; The time recording module is used to record the current time if the material bin starts feeding, and set the material bin that starts feeding as the feeding bin; A feeding duration calculation module, used to calculate the feeding duration of the feeding bin; Calculating the feeding duration of the feeding bin includes: obtaining the material accumulation angle of the feeding bin at the current time; calculating the feeding duration according to the material accumulation angle; the material accumulation angle is: when feeding, the upper surface of the material is approximately an inverted cone, and the material accumulation angle is the angle between the generatrix of the cone and the side wall of the feeding bin; Calculating the feeding duration according to the material accumulation angle includes: ； is the feeding duration, is the bulk density of the material in the feed bin, is the diameter of the feed bin, is the material accumulation angle, is the discharging speed of the discharging belt of the feeding bin; The feeding time calculation module is used to calculate the time obtained by subtracting the feeding duration from the current time as the actual feeding time of the mixed ore.

5. The mixed ore tracking determination system according to claim 4, characterized in that: Also includes: The allocation time calculation module is used to obtain the position of the feed bin at the feed time, and calculate the allocation end time of the old material component according to the position of the feed bin at the feed time.

6. An electronic device, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the determination method for mixed ore tracking as claimed in any one of claims 1 to 3 is implemented.

7. A computer-readable storage medium, characterized in that: When the computer-readable storage medium is executed, the mixed ore tracking determination method described in any one of claims 1 to 3 is implemented.

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