Multistage ore blending method, system and equipment for optimizing flow ratio and medium

Abstract

The invention relates to the technical field of ore blending, in particular to a multistage ore blending method, system and equipment for optimizing the flow ratio and a medium, and the method comprises the steps that the number of original ore storage yards participating in ore blending is determined, and original ore indexes and target ore blending indexes in each original ore storage yard are obtained; when the number of the original ore storage yards is three, a three-storage-yard ore blending strategy is executed; when the number of the original ore storage yards is two, an initial ore blending flow ratio is calculated based on the original ore indexes of the two original ore storage yards and the target ore blending index, whether the initial ore blending flow ratio is within a set threshold value or not is judged, and if yes, a double-storage-yard single-time ore blending strategy is executed; and if not, a double-storage-yard multi-time ore blending strategy is executed. By dynamically selecting a double-storage-yard single-time ore blending strategy, a double-storage-yard multi-time ore blending strategy or a three-storage-yard ore blending strategy, efficient operation of equipment is ensured, the multi-storage-yard mixing process is optimized, and collaborative improvement of ore blending efficiency and quality is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ore blending, in particular to a multi-stage ore blending method, system, device and medium for optimizing flow ratio. BACKGROUND

[0002] In the field of steel smelting and dry bulk terminal operation, the element content stability of raw ore has a key impact on production efficiency and product quality. The industry needs to mix different grades of raw ore through blending technology to meet the precise requirements of downstream customers for the content of specified elements (such as iron or silicon), and to ensure that the finished ore meets the target indicators.

[0003] The prior art uses a single blending method to solve the problem of ore mixing, which directly mixes the ores of two raw ore yards by calculating the flow ratio of two stacker-reclaimers, to generate the target finished ore. This method is based on a preset blending flow ratio formula, aiming to adjust the target element content in one time.

[0004] However, when the raw ore indicators of one raw ore yard differ greatly from the target blending indicators, and the raw ore indicators of another raw ore yard differ slightly from the target blending indicators, the directly calculated blending flow ratio may exceed the efficient operation range of the equipment, resulting in too low a flow of the stacker-reclaimer, affecting the blending uniformity and equipment utilization. In addition, for a three-raw-ore-yard scenario, the prior art lacks a targeted staged blending strategy, and cannot optimize the multi-yard mixing process. SUMMARY

[0005] In view of the technical problems that the initial flow ratio exceeds the efficient operation range of the equipment due to the difference between the raw ore indicators and the target blending indicators in the existing blending technology for double-yard blending, and that there is a lack of staged mixing strategy in a three-yard scenario, affecting equipment utilization and blending efficiency, the present application provides a multi-stage ore blending method, system, device and medium for optimizing flow ratio, which dynamically selects a double-yard single blending, double-yard multi-blending or three-yard blending strategy, ensures efficient operation of the equipment and optimizes the multi-yard mixing process, and achieves a coordinated improvement in blending efficiency and quality.

[0006] In a first aspect, the present application provides a multi-stage ore blending method for optimizing flow ratio, comprising the following steps: S1. Determine the number of raw ore yards participating in blending, and obtain the raw ore indicators and target blending indicators in each raw ore yard; When the number of raw ore yards is 3, step S2 is performed, and when the number of raw ore yards is 2, step S3 is performed; The raw ore indicators are the average specified element content of the raw ore, and the target blending indicators are the specified element content of the target finished ore; S2. Perform a three-yard blending strategy to obtain a three-yard finished ore; S3. Calculate the initial blending flow ratio based on the original ore indexes of the two original ore stockyards and the target blending index, determine whether the initial blending flow ratio is within the set threshold, if yes, execute step S4; if no, execute step S5; The blending flow ratio is the ratio of the material taking flow of the two stack reclaimer participating in blending when blending. S4. Execute the double stockyard single blending strategy to blend the original ores of the two original ore stockyards with the initial blending flow ratio to obtain the double stockyard finished ore. S5. Execute the double stockyard multiple blending strategy, including: S501. Select the blending flow ratio within the set threshold to blend the original ores of the two original ore stockyards once to obtain the double stockyard intermediate ore, and transport the double stockyard intermediate ore to the intermediate ore stockyard for temporary storage; calculate the double stockyard intermediate ore index based on the actual executed blending flow ratio, and the double stockyard intermediate ore index is the average specified element content of the double stockyard intermediate ore. S502. Select the original ore stockyard meeting the following conditions as the second blending stockyard: The intermediate ore index and one of the original ore indexes of the second blending stockyard are greater than the target blending index, and the other is less than the target blending index. Select the original ore stockyard with the original ore index relatively close to the target blending index as the second blending stockyard, and calculate the double stockyard secondary blending flow ratio based on the double stockyard intermediate ore index, the original ore index of the second blending stockyard, and the target blending index. S503. Perform secondary blending on the double stockyard intermediate ore and the original ore of the second blending stockyard with the double stockyard secondary blending flow ratio to obtain the double stockyard finished ore.

[0007] It is further explained that in step S1, the specified element is iron or silicon.

[0008] It is further explained that in step S2, the execution of the three stockyard blending strategy includes: S201. Select one of the original ore stockyards with the original ore index closest to the target blending index as the three stockyard second blending stockyard, and select the remaining two original ore stockyards as the three stockyard first blending stockyards, S202. Perform three stockyard primary blending on the original ores of the two three stockyard first blending stockyards to obtain three stockyard intermediate ore, and calculate the three stockyard intermediate ore index of the three stockyard intermediate ore based on the actual executed blending flow ratio in the three stockyard primary blending. S203. Calculate the three stockyard secondary blending flow ratio based on the three stockyard intermediate ore index, the original ore index of the three stockyard second blending stockyard, and the target blending index, and perform three stockyard secondary blending on the three stockyard intermediate ore and the original ore of the three stockyard second blending stockyard with the three stockyard secondary blending flow ratio to obtain the three stockyard finished ore.

[0009] It needs to be further explained that in step S202, the blending flow ratio of the three stockyard one-time blending is .

[0010] It needs to be further explained that in the process of implementing the three stockyard blending strategy, the three stockyard one-time blending uses two first-level conveying belts to convey the raw ore of the two three stockyard one-time blending stockyards to a second-level conveying belt for dynamic mixing, forming a three stockyard intermediate ore flow; The second-level conveying belt continuously conveys the three stockyard intermediate ore flow to a third-level conveying belt, and another second-level conveying belt continuously conveys the raw ore of the three stockyard two-time blending stockyard to the third-level conveying belt, so that the three stockyard intermediate ore and the raw ore of the three stockyard two-time blending stockyard are dynamically mixed in the running process of the third-level conveying belt, forming a three stockyard finished product ore flow.

[0011] It needs to be further explained that in step S3, the set threshold of the initial blending flow ratio is .

[0012] It needs to be further explained that in step S501, the blending flow ratio of the two stockyard one-time blending is .

[0013] It needs to be further explained that the calculation method of the initial blending flow ratio, the two stockyard two-time blending flow ratio is as follows:

[0014] In the formula, is the average designated element content of the ore whose average designated element content is higher than the target blending index in the two ores participating in blending; is the average designated element content of the ore whose average designated element content is lower than the target blending index in the two ores participating in blending; is the taking flow of the corresponding ore during blending; is the taking flow of the corresponding ore during blending; is the taking flow of the corresponding ore during blending; is the taking flow of the corresponding ore during blending; is the target blending index.

[0015] It needs to be further explained that in S501, the calculation method of the two stockyard intermediate ore index is as follows:

[0016] is the raw ore index of the first raw ore participating in one-time blending; The raw ore index of the second raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending.

[0017] It should be further explained that the material taking flow of the stacker-reclaimer participating in the ore blending process is greater than 50% of the rated flow.

[0018] In a second aspect, the present application provides a multi-stage ore blending system for optimizing flow ratio, which is used to implement the above multi-stage ore blending method, and comprises: A stockyard data acquisition module is configured to determine the number of raw ore stockyards participating in the ore blending, and acquire the raw ore index and the target ore blending index in each raw ore stockyard; An ore blending strategy scheduling module is configured to select an execution path according to the number of raw ore stockyards; A three-stockyard ore blending module is configured to execute a three-stockyard ore blending strategy to obtain a three-stockyard finished ore; A double-stockyard initial calculation module is configured to calculate an initial ore blending flow ratio based on the raw ore index and the target ore blending index of two raw ore stockyards, and select double-stockyard direct ore blending or double-stockyard multi-time ore blending according to the relationship between the initial ore blending flow ratio and a set threshold value; A double-stockyard direct ore blending module is configured to execute double-stockyard direct ore blending to blend the raw ores of the two raw ore stockyards with the initial ore blending flow ratio, and obtain a double-stockyard finished ore; A double-stockyard multi-time ore blending module is configured to execute a double-stockyard multi-time ore blending strategy to finally obtain a double-stockyard finished ore.

[0019] In a third aspect, the present application provides an electronic device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor is configured to implement the steps of the above multi-stage ore blending method when executing the computer program.

[0020] In a fourth aspect, the present application provides a storage medium, which stores a computer program, and the computer program is executable on a processor to implement the steps of the above multi-stage ore blending method.

[0021] As can be seen from the above technical solutions, the present application has the following advantages: 1. The application automatically switches the ore blending path according to the number of original stockyards, adopts different ore blending strategies for two original stockyards and three original stockyards respectively, constructs a multi-stage ore blending decision-making process, solves the problem of single ore blending method in the prior art that cannot dynamically adapt to different scenes, and realizes efficient and accurate conversion from original ore to finished ore.

[0022] 2. When the original stockyard is two, the application determines whether the initial ore blending flow ratio is within the set threshold, and executes the double stockyard multi-blending strategy when the set threshold is exceeded, first generates an intermediate ore temporary storage with a reasonable flow ratio, and then mixes it with the selected second blending stockyard original ore for secondary mixing, solves the problem of unbalanced operation of the two stackers and too large load difference, and realizes efficient operation of the stacker and stability of the ore blending process.

[0023] 3. When the original stockyard is three, the application executes a three-stockyard ore blending strategy, mixes the ore in stages and directly transports it without intermediate ore landing and temporary storage, solves the problem of interruption of the multi-stockyard ore blending process, and realizes the improvement of stockyard turnover efficiency and ore blending quality. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the application, the following will briefly introduce the drawings needed to be used in the description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is a flow chart of the multi-stage ore blending method with optimized flow ratio in an embodiment of the application.

[0026] Figure 2 is a schematic block diagram of the multi-stage ore blending system with optimized flow ratio in an embodiment of the application.

[0027] Figure 3 is a schematic diagram of the hardware structure of an electronic device in an embodiment of the application. DETAILED DESCRIPTION

[0028] In order to make the application purposes, features and advantages of the application more obvious and easy to understand, the following will use specific embodiments and drawings to clearly and completely describe the technical solutions protected by the application. Obviously, the following described embodiments are only some of the embodiments of the application, not all the embodiments. Based on the embodiments in the patent, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the patent protection.

[0029] The multi-stage ore blending method according to the present application will be described in detail below. For the purpose of illustration but not for the purpose of limitation, specific details such as particular system configurations, techniques, etc. are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced in other embodiments that depart from these specific details.

[0030] In the multi-stage ore blending method according to the present application, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. The terms "comprising", "containing", "having" and their conjugates mean "including, but not limited to", unless otherwise specifically indicated.

[0031] In order to clearly describe the technical solutions of the present application, the terms "first", "second", etc. are used to distinguish the same or similar items or components with basically the same functions and effects. Those skilled in the art can understand that the terms "first", "second", etc. do not limit the quantity and execution order, and the terms "first", "second", etc. do not necessarily mean different.

[0032] The phrases "one embodiment", "some embodiments", etc. appearing in the present application mean that the specific features, structures, or characteristics described in the embodiment are included in one or more embodiments of the present application. Therefore, the phrases "in one embodiment", "in some embodiments", "in other some embodiments", "in yet some embodiments", etc. appearing in the present application do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized.

[0033] The following are some explanations of terms in the present application, in order to better understand the present application: Ore blending: Ore blending refers to a process of using two stacker-reclaimers to take materials from two original ore piles (such as high-grade ore pile A and low-grade ore pile B) respectively, and mixing them in a set proportion to achieve a target grade. During operation, the two devices take materials from their respective ore piles simultaneously, and deliver them to a mixing area through a conveyor belt. According to the real-time detection of the ore composition (such as iron and silicon content), the speed or flow of the double-machine material taking is adjusted, so that the mixed ore meets the quality requirements of the beneficiation, smelting, etc. process. The required ore composition content of the two original ore piles participating in ore blending must be one greater than the target content and the other less than the target content.

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application.

[0035] The multi-stage ore blending method provided by the embodiment of the application is executed by a computer device, and accordingly, the multi-stage ore blending system for dynamic balance of the center of gravity of the ship runs in the computer device.

[0036] Figure 1 is a flowchart of the multi-stage ore blending method for optimizing flow ratio according to an embodiment of the application. In the flowchart, Figure 1 The execution subject can be a multi-stage ore blending system. The order of the steps in the flowchart can be changed, and some steps can be omitted according to different requirements.

[0037] As shown in Figure 1 The multi-stage ore blending method for optimizing flow ratio includes the following steps. Step S1, determining the number of original ore stockpiles participating in ore blending, obtaining an original ore index and a target ore blending index in each original ore stockpile; Step S2 is executed when the number of original ore stockpiles is 3, and step S3 is executed when the number of original ore stockpiles is 2; The original ore index is the average designated element content of the original ore, and the target ore blending index is the designated element content of the target finished ore.

[0038] By obtaining the original ore index and the target ore blending index and triggering the corresponding ore blending process according to the number of stockpiles, the standardization and quantitative analysis of the ore blending conditions are realized, which provides basic data support for subsequent flow ratio calculation and multi-stage ore blending strategy, and ensures the scientificity and repeatability of the ore blending process.

[0039] In some specific embodiments, the designated element is iron or silicon.

[0040] By limiting the designated element to iron or silicon, a standardized ore blending process design for the main ore components in the metallurgical industry is realized, ensuring the direct applicability of the method in typical scenarios such as iron ore beneficiation or silicon-based material preparation, and reducing the compatibility requirements of element detection equipment.

[0041] Step S2, executing a three-stockpile ore blending strategy to obtain a three-stockpile finished ore.

[0042] By executing the three-stockpile ore blending strategy, the three original ore stockpiles are mixed in stages, realizing the collaborative optimization of multi-source ores, avoiding the over-limitation of the finished ore index due to the deviation of a single stockpile index, and improving the success rate of complex ore source ore blending.

[0043] In some specific embodiments, executing the three-stockpile ore blending strategy includes the following steps. S201. One of the original ore stockpiles whose original ore index is closest to the target ore blending index is taken as a three-stockpile two-blending stockpile, and the remaining two original ore stockpiles are taken as three-stockpile one-blending stockpiles, S202. Perform the first blending of the two raw ores in the three-heap blending yard to obtain a three-heap intermediate ore, and calculate the three-heap intermediate ore index of the three-heap intermediate ore based on the actual blending flow ratio in the first blending of the three-heap blending yard; S203. Calculate the second blending flow ratio of the three-heap blending yard based on the three-heap intermediate ore index, the raw ore index of the second blending yard of the three-heap blending yard, and the target blending index, and perform the second blending of the three-heap blending yard to obtain a three-heap finished ore.

[0044] By dividing the three-heap blending into two mixing processes and dynamically calculating the intermediate ore index, the grading optimization of the multi-heap ore is realized, the index difference of different heaps is balanced by using the intermediate ore as a transition medium, the parameter calculation complexity in direct mixing of the three-heap is avoided, and the stability of the finished ore index is improved.

[0045] In some specific embodiments, the blending flow ratio of the first blending of the three-heap blending yard is .

[0046] By limiting the blending flow ratio of the first blending of the three-heap blending yard, the initial mixing ratio is reasonably constrained, the intermediate ore index is prevented from deviating too much from the expected value due to the large flow difference, and controllable process conditions are created for the second blending.

[0047] In some specific embodiments, during the implementation of the three-heap blending strategy, the first blending of the three-heap blending yard uses two primary conveying belts to dynamically mix the raw ores of the two first blending yards of the three-heap blending yard on a secondary conveying belt to form a three-heap intermediate ore stream; The secondary conveying belt continuously conveys the three-heap intermediate ore stream to a tertiary conveying belt, and another secondary conveying belt continuously conveys the raw ore of the second blending yard of the three-heap blending yard to the tertiary conveying belt, so that the three-heap intermediate ore and the raw ore of the second blending yard of the three-heap blending yard are dynamically mixed in the operation process of the tertiary conveying belt to form a three-heap finished ore stream.

[0048] By directly performing the second blending of the three-heap on the tertiary conveying belt, the continuous processing of the intermediate ore and the ore of the second blending yard is realized, the material loss in the intermediate ore transfer link and the number of equipment start-stop times are reduced, and the overall efficiency of the blending process is improved.

[0049] Step S3, calculate the initial blending flow ratio based on the raw ore indexes of the two raw ore yards and the target blending index, determine whether the initial blending flow ratio is within a set threshold, if yes, execute step S4; if not, execute step S5; The blending flow ratio is the ratio of the material taking flow of the two stacker-reclaimers participating in blending when blending.

[0050] The initial ore blending flow rate ratio is calculated and determined whether it is within the set threshold, realizing the rapid evaluation of the feasibility of direct ore blending of the double stockyard, avoiding the influence of the flow rate ratio exceeding the equipment capacity or process requirements on the ore blending efficiency, and reducing invalid operation.

[0051] In some embodiments, the set threshold of the initial ore blending flow rate ratio is .

[0052] By setting the threshold of the initial ore blending flow rate ratio, the quantitative definition of the feasibility of direct ore blending of the double stockyard is realized, which prevents the failure of ore blending due to the flow rate ratio exceeding the equipment adjustment range or process tolerance, and ensures the reliability of the basic ore blending process.

[0053] Step S4, a single ore blending strategy of the double stockyard is executed to blend the original ores of the two original ore stockyards with the initial ore blending flow rate ratio to obtain the double stockyard finished ore.

[0054] By directly blending the double stockyard with the compliant initial ore blending flow rate ratio, the rapid finished ore output is realized when the original ore indicators and target indicators are compatible, the process is simplified and the equipment energy consumption is reduced, and the ore blending efficiency is improved.

[0055] Step S5, a multiple ore blending strategy of the double stockyard is executed, including: S501. Selecting an ore blending flow rate ratio within the set threshold to blend the original ores of the two original ore stockyards once to obtain a double stockyard intermediate ore, and transporting the double stockyard intermediate ore to an intermediate ore stockyard for temporary storage; calculating the double stockyard intermediate ore indicators based on the actual executed ore blending flow rate ratio, and the double stockyard intermediate ore indicators being the average specified element content of the double stockyard intermediate ore; S502. Selecting an original ore stockyard that meets the following conditions as a second blending stockyard: The intermediate ore indicators and the original ore indicators of the second blending stockyard are greater than the target ore blending indicators on one side and less than the target ore blending indicators on the other side; Selecting the original ore stockyard with the original ore indicators relatively close to the target ore blending indicators as the second blending stockyard, and calculating the double stockyard secondary ore blending flow rate ratio based on the double stockyard intermediate ore indicators, the original ore indicators of the second blending stockyard, and the target ore blending indicators; S503. Blending the double stockyard intermediate ore and the original ore of the second blending stockyard with the double stockyard secondary ore blending flow rate ratio to obtain the double stockyard finished ore.

[0056] By the multiple ore blending strategy of the double stockyard, the intermediate ore is generated and the secondary ore blending is performed, realizing the gradual optimization of the condition that the difference between the original ore indicators and the target indicators is large, and reducing the risk of index deviation of the final finished ore by using the intermediate ore transition, wherein: By temporarily storing the intermediate ore of the double stockyard one-time ore blending and calculating its index, dynamic monitoring and temporary storage of mixed ore are realized, providing quantifiable intermediate materials for subsequent secondary ore blending, and ensuring data continuity of multi-level ore blending process; By screening the secondary blending stockyard complementary to the intermediate ore index and preferentially selecting the stockyard with an index close to the target, the parameter optimization of secondary ore blending is realized, reducing the repeated ore blending times caused by improper selection of stockyard, and improving resource utilization; By calculating the secondary ore blending flow ratio based on the intermediate ore and the secondary blending stockyard index and mixing, the precise control of the finished ore index is realized, and the limitations of single ore blending are compensated by the two-stage ore blending superposition effect, improving the finished product compliance rate.

[0057] In some specific embodiments, the ore blending flow ratio of the double stockyard one-time ore blending is .

[0058] By limiting the double stockyard one-time ore blending flow ratio, the flow balance control of the intermediate ore generation stage is realized, ensuring that the intermediate ore index is in a reasonable interval that can be adjusted twice, and avoiding the increase of subsequent ore blending difficulty caused by unbalanced initial mixing ratio.

[0059] In some specific embodiments, the initial ore blending flow ratio, the double stockyard secondary ore blending flow ratio The calculation method is as follows:

[0060] In the formula, is the average specified element content of the ore with an average specified element content higher than the target ore blending index in the two ores participating in ore blending; is the average specified element content of the ore with an average specified element content lower than the target ore blending index in the two ores participating in ore blending; is the taking flow of the corresponding ore during ore blending; is the taking flow of the corresponding ore during ore blending; is the target ore blending index.

[0061] By formulating the ore blending flow ratio, the precise mathematical modeling of the mixing ratio is realized, the linear relationship between the ore index difference and the target value is directly mapped to the equipment operation parameters, and the scientificity and verifiability of the flow ratio calculation are improved.

[0062] In some specific embodiments, the calculation method of the double stockyard intermediate ore index is as follows: The two original mines in the two original stockyards are once mixed in the double stockyard to obtain double stockyard intermediate ore, and the double stockyard intermediate ore is transported to the intermediate ore stockyard for temporary storage; based on the actual mixed ore flow ratio

[0063] The original ore index of the first kind of original ore participating in the once mixed ore; The original ore index of the second kind of original ore participating in the once mixed ore; The original ore index of the second kind of original ore participating in the once mixed ore; The original ore index of the second kind of original ore participating in the once mixed ore; The original ore index of the second kind of original ore participating in the once mixed ore; The original ore index of the second kind of original ore participating in the once mixed ore; The double stockyard intermediate ore index.

[0064] By calculating the intermediate ore index based on the actual flow ratio, real-time dynamic evaluation of the mixed material composition is realized, accurate process data feedback is provided for multi-stage ore mixing, and index prediction errors caused by deviations between theoretical calculation and equipment execution are eliminated.

[0065] In some specific embodiments, during each ore mixing process, the material taking flow of the stacker-reclaimer participating in the ore mixing is greater than 50% of the rated flow.

[0066] By limiting the material taking flow to be greater than 50% of the rated flow, the working state of the stacker-reclaimer is optimized and controlled, avoiding equipment efficiency decline or mechanical wear caused by low load operation, and ensuring the continuity of the ore mixing process and the service life of the equipment.

[0067] In one specific embodiment, the steps of the multi-stage ore mixing method of optimizing the flow ratio include: Step S1, determining the number of original ore stockyards participating in ore mixing, obtaining the original ore index and target ore mixing index in each original ore stockyard; Step S2 is performed when the number of original ore stockyards is 3, and step S3 is performed when the number of original ore stockyards is 2; The original ore index is the average specified element content of the original ore, the target ore mixing index is the specified element content of the target finished ore, and the specified element is iron.

[0068] Step S2, performing a three-stockyard ore mixing strategy to obtain a three-stockyard finished ore, including: S201. One of the original ore stockyards with the closest original ore index to the target ore mixing index is used as a three-stockyard secondary mixing stockyard, and the remaining two original ore stockyards are used as three-stockyard primary mixing stockyards, S202. The raw ore from two three-stacking yards and one blending yard is blended once in each three-stacking yard to obtain intermediate ore for the three-stacking yards. The blending flow rate ratio for the single blending in the three-stacking yards is... Based on three storage yards and one distribution The actual ore blending flow ratio implemented in the mine is used to calculate the intermediate ore index of the three stockpiles. The ore blending flow ratio is the ratio of the reclaimed flow rates of the two stacker-reclaimers participating in the ore blending process. S203. Calculate the secondary blending flow ratio of the three stockpiles based on the intermediate ore index of the three stockpiles, the original ore index of the second blending stockpiles of the three stockpiles, and the target blending index. Use the secondary blending flow ratio of the three stockpiles to perform secondary blending of the intermediate ore of the three stockpiles and the original ore of the second blending stockpiles of the three stockpiles to obtain the finished ore of the three stockpiles. Among them, the three stockpiles use two primary conveyor belts to transport the raw ore from the two stockpiles to a secondary conveyor belt for dynamic mixing, forming the intermediate ore flow in the three stockpiles; The secondary conveyor belt continuously transports the intermediate ore flow from the third stockpile to the tertiary conveyor belt. At the same time, another secondary conveyor belt continuously transports the raw ore from the second distribution stockpile of the third stockpile to the tertiary conveyor belt, so that the intermediate ore from the third stockpile and the raw ore from the second distribution stockpile of the third stockpile dynamically mix during the operation of the tertiary conveyor belt, forming the finished ore flow from the third stockpile.

[0069] Step S3: Calculate the initial blending flow ratio based on the original ore index and target blending index of the two original ore stockpiles, and determine whether the initial blending flow ratio is within the set threshold. If yes, proceed to step S4; otherwise, proceed to step S5. The initial ore blending flow rate setting threshold is: .

[0070] Step S4: Execute the dual-stacking-field single-batch ore blending strategy, blend the raw ore from the two raw ore stalls according to the initial ore blending flow ratio, and obtain the dual-stacking-field finished ore.

[0071] Step S5, execute the dual-stacking-farm multiple ore blending strategy, including: S501. Select the blending flow rate ratio within the set threshold to perform a single blending of the original ore from the two original ore stockpiles in two stockpiles to obtain intermediate ore from the two stockpiles. Then, transport the intermediate ore from the two stockpiles to the intermediate ore stockpile for temporary storage. The blending flow rate ratio of the two stockpiles in a single blending process is: ; The intermediate ore index for the dual stockpile is calculated based on the actual ore blending flow ratio. The intermediate ore index for the dual stockpile is the average specified element content of the intermediate ore from the dual stockpile, and the calculation method is as follows:

[0072] The raw ore index of the first raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending; The raw ore index of the second raw ore participating in the one-time ore blending; S502. Screening the raw ore yard as the two-time ore blending yard, which meets the following conditions: The intermediate ore index is greater than the target ore blending index on one side and less than the target ore blending index on the other side; The raw ore yard with a raw ore index close to the target ore blending index is selected as the two-time ore blending yard, and the double-yard two-time ore blending flow ratio is calculated based on the double-yard intermediate ore index, the raw ore index of the two-time ore blending yard, and the target ore blending index; S503. The double-yard intermediate ore and the raw ore of the two-time ore blending yard are two-time ore blended with the double-yard two-time ore blending flow ratio, to obtain the double-yard finished ore The initial ore blending flow ratio and the double-yard two-time ore blending flow ratio The calculation method is as follows:

[0073] In the formula, The average specified element content of the ore with the average specified element content higher than the target ore blending index in the two ores participating in the ore blending; The average specified element content of the ore with the average specified element content lower than the target ore blending index in the two ores participating in the ore blending; The average specified element content of the ore with the average specified element content lower than the target ore blending index in the two ores participating in the ore blending; The average specified element content of the ore with the average specified element content lower than the target ore blending index in the two ores participating in the ore blending; The average specified element content of the ore with the average specified element content lower than the target ore blending index in the two ores participating in the ore blending; The average specified element content of the ore with the average specified element content lower than the target ore blending index in the two ores participating in the ore blending; The target ore blending index.

[0074] In each ore blending process, the flow rate of the stacker-reclaimer participating in the ore blending is greater than 50% of the rated flow rate.

[0075] The following is an embodiment of the multi-stage ore blending system with optimized flow ratio provided by the present application, which belongs to the same inventive concept as the multi-stage ore blending method of each embodiment described above. For details not described in the embodiment of the multi-stage ore blending system, please refer to the embodiments of the multi-stage ore blending method with optimized flow ratio described above.

[0076] As shown in Figure 2 The multi-stage ore blending system with optimized flow ratio comprises: a stockyard data acquisition module configured to determine the number of original ore stockyards participating in ore blending, and to obtain original ore indicators and target ore blending indicators in each original ore stockyard; an ore blending strategy scheduling module configured to select an execution path according to the number of original ore stockyards; a three-stockyard ore blending module configured to execute a three-stockyard ore blending strategy to obtain three-stockyard finished ore; a two-stockyard initial calculation module configured to calculate an initial ore blending flow ratio based on the original ore indicators and the target ore blending indicators of two original ore stockyards, and to select two-stockyard direct ore blending or two-stockyard multiple ore blending according to the relationship between the initial ore blending flow ratio and a set threshold value; a two-stockyard direct ore blending module configured to execute two-stockyard direct ore blending to blend the original ores of the two original ore stockyards with the initial ore blending flow ratio, and to obtain two-stockyard finished ore; a two-stockyard multiple ore blending module configured to execute a two-stockyard multiple ore blending strategy to finally obtain two-stockyard finished ore.

[0077] The multi-stage ore blending system of the present embodiment is used to implement the multi-stage ore blending method with optimized flow ratio, and the steps include: S1. determining the number of original ore stockyards participating in ore blending, and obtaining original ore indicators and target ore blending indicators in each original ore stockyard; When the number of original ore stockyards is three, step S2 is executed, and when the number of original ore stockyards is two, step S3 is executed; The original ore indicator is the average specified element content of the original ore, and the target ore blending indicator is the specified element content of the target finished ore; S2. executing a three-stockyard ore blending strategy to obtain three-stockyard finished ore; S3. calculating an initial ore blending flow ratio based on the original ore indicators and the target ore blending indicators of two original ore stockyards, and determining whether the initial ore blending flow ratio is within a set threshold value, if yes, step S4 is executed, and if no, step S5 is executed; The ore blending flow ratio is the ratio of the material taking flow of the two stacker-reclaimers participating in ore blending during ore blending; S4. executing two-stockyard direct ore blending to blend the original ores of the two original ore stockyards with the initial ore blending flow ratio, and obtaining two-stockyard finished ore; S5. Perform the double stockyard multiple blending strategy, including: S501. Select a blending flow ratio within a set threshold to blend the original ores of the two original stockyards to obtain a double stockyard intermediate ore, and transport the double stockyard intermediate ore to an intermediate ore stockyard for temporary storage; calculate a double stockyard intermediate ore index based on the actual blending flow ratio, the double stockyard intermediate ore index being the average designated element content of the double stockyard intermediate ore; S502. Select an original stockyard that meets the following conditions as a two-time blending stockyard: The intermediate ore index and the original ore index of the two-time blending stockyard are greater than and less than the target blending index, respectively; Select an original stockyard with an original ore index relatively close to the target blending index as the two-time blending stockyard, and calculate a double stockyard two-time blending flow ratio based on the double stockyard intermediate ore index, the original ore index of the two-time blending stockyard, and the target blending index; S503. Perform two-time blending on the double stockyard intermediate ore and the original ore of the two-time blending stockyard with the double stockyard two-time blending flow ratio to obtain a double stockyard finished product ore.

[0078] The application also provides an electronic device for implementing various embodiments of the application, Figure 3 A hardware structure schematic diagram of an electronic device for implementing various embodiments of the application is shown in Figure 3 The electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor.

[0079] Those skilled in the art can understand that the electronic device structure involved in the embodiments of the application does not constitute a limitation on the electronic device, and the electronic device can include more or fewer components than the diagram, or combine certain components, or different component arrangements.

[0080] In the embodiments of the application, the electronic device includes but is not limited to a laptop computer, a desktop computer, a workstation, a personal digital assistant, a server, a blade server, a mainframe computer, and other suitable computers. The electronic device can also represent various forms of mobile devices and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the embodiments of the application described and / or claimed herein.

[0081] In the embodiments of the present application, the processor can be implemented by using at least one of an application specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a processor, a controller, a microcontroller, a microprocessor, an electronic unit designed to perform the functions described herein, in some cases, such an implementation can be implemented in a controller. For software implementation, the implementation of such as processes or functions can be implemented with separate software modules allowing at least one function or operation to be performed, the software code can be implemented by a software application (or program) written in any appropriate programming language, the software code can be stored in a memory and executed by a controller.

[0082] In addition, the electronic device includes some functional modules that are not shown and will not be described here.

[0083] Those skilled in the art can understand that various aspects of the electronic device provided by the present application can be implemented as a system, a method or a program product. Therefore, various aspects of the present application can be embodied as a complete hardware embodiment, a complete software embodiment (including firmware, microcode, etc.), or an embodiment combining hardware and software aspects, which can be collectively referred to as "circuitry", "module" or "system" here.

[0084] The present application also provides a storage medium in which a program product for realizing the multi-stage ore matching method for dynamic balance of the center of gravity of the ship is stored. In some possible embodiments, various aspects of the present application can also be implemented in the form of a program product, which includes program code for causing the terminal device to perform the steps described in the "example method" section above according to various example embodiments of the present application when the program product is run on the terminal device.

[0085] The storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium may, for example, be but is not limited to an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include an electrical connection having one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read only memory (ROM), an erasable programmable read only memory (EPROM or flash memory), an optical fiber, a portable compact disk read only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0086] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and, while certain embodiments according to the principles set forth herein have been shown and described, various modifications and substitutions can be made by those skilled in the art without departing from the spirit and scope of the application as set forth in the following claims. Therefore, the application is not intended to be limited to the embodiments disclosed herein, but rather is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-stage ore blending method for optimizing flow ratios, characterized in that, include: S1. Determine the number of original ore stockpiles participating in ore blending, and obtain the original ore index and target ore blending index for each original ore stockpile; When there are 3 original ore stockpiles, proceed to step S2; when there are 2 original ore stockpiles, proceed to step S3. The raw ore index is the average specified element content of the raw ore, and the target blending index is the specified element content of the target finished ore. S2. Implement the three-yard ore blending strategy to obtain finished ore from the three yards; S3. Calculate the initial blending flow ratio based on the original ore index and target blending index of the two original ore stockpiles, and determine whether the initial blending flow ratio is within the set threshold. If yes, proceed to step S4; otherwise, proceed to step S5. The ore blending flow ratio is the ratio of the reclaimed flow rates of the two stacker-reclaimers participating in the ore blending process. S4. Execute the dual-stacking-field single-batch ore blending strategy, blend the raw ore from the two raw ore stalls according to the initial ore blending flow ratio, and obtain the dual-stacking-field finished ore; S5. Implement a dual-farm, multiple-batch ore blending strategy, including: S501. Select the blending flow ratio within the set threshold to perform a single blending of the raw ore from the two raw ore stockpiles in two stockpiles to obtain intermediate ore from the two stockpiles. The intermediate ore from the two stockpiles is then transported to the intermediate ore stockpile for temporary storage. The intermediate ore index from the two stockpiles is calculated based on the actual blending flow ratio. The intermediate ore index from the two stockpiles is the average specified element content of the intermediate ore from the two stockpiles. S502. Select original ore stockpiles that meet the following conditions as secondary stockpiles: The intermediate ore index and the original ore index of the secondary blending yard are both greater than the target blending index and less than the target blending index. The original ore stockpile with original ore indicators that are relatively close to the target ore blending indicators is taken as the secondary ore blending stockpile. The secondary ore blending flow ratio of the two stockpile is calculated based on the intermediate ore indicators of the two stockpile, the original ore indicators of the secondary ore blending stockpile, and the target ore blending indicators. S503. The intermediate ore in the two stockpiles and the original ore in the second stockpiles are blended in a secondary blending process using the secondary blending flow rate ratio of the two stockpiles to obtain the finished ore from the two stockpiles.

2. The multi-stage ore blending method as described in claim 1, characterized in that, In step S1, the specified element is either iron or silicon.

3. The multi-stage ore blending method as described in claim 1, characterized in that, In step S2, the implementation of the three-yard ore blending strategy includes: S201. The original ore stockpile whose original ore index is closest to the target blending index shall be designated as the second blending stockpile of the third stockpile, and the remaining two original ore stockpiles shall be designated as the first blending stockpile of the third stockpile. S202. Perform one blending operation on the original ore from two three-stockyard and one-blending stockyards to obtain intermediate ore from the three-stockyard stockyards. Calculate the intermediate ore index of the three-stockyard stockyards based on the actual blending flow ratio executed in the one-blending operation. S203. Calculate the secondary blending flow ratio of the three stockpiles based on the intermediate ore index of the three stockpiles, the original ore index of the second blending stockpiles of the three stockpiles, and the target blending index. Use the secondary blending flow ratio of the three stockpiles to perform secondary blending of the intermediate ore of the three stockpiles and the original ore of the second blending stockpiles of the three stockpiles to obtain the finished ore of the three stockpiles.

4. The multi-stage ore blending method as described in claim 3, characterized in that, During the implementation of the three-yard ore blending strategy, the three-yard ore blending process uses two primary conveyor belts to transport the raw ore from the two three-yard primary blending yards to a secondary conveyor belt for dynamic mixing, forming the intermediate ore flow of the three-yard yards; The secondary conveyor belt continuously transports the intermediate ore flow from the third stockpile to the tertiary conveyor belt. At the same time, another secondary conveyor belt continuously transports the raw ore from the second distribution stockpile of the third stockpile to the tertiary conveyor belt, so that the intermediate ore from the third stockpile and the raw ore from the second distribution stockpile of the third stockpile dynamically mix during the operation of the tertiary conveyor belt, forming the finished ore flow from the third stockpile.

5. The multi-stage ore blending method as described in claim 1, characterized in that, In step S3, the initial ore blending flow rate ratio is set to a threshold value of 100%. .

6. The multi-stage ore blending method as described in claim 1, characterized in that, Initial ore blending flow ratio, secondary ore blending flow ratio in dual stockpiles The calculation method is as follows: In the formula, The average specified element content of the two ores participating in the blending is higher than the target blending index. The average specified element content of the two ores participating in the blending is lower than the target blending index. for The feed flow rate corresponding to the ore during blending; for The feed flow rate corresponding to the ore during blending; The target ore blending index.

7. The multi-stage ore blending method as described in claim 1, characterized in that, In S501, the calculation method for the intermediate ore index of dual stockpiles is as follows: The raw ore from two original ore stockpiles undergoes a single blending process in both stockpiles to obtain intermediate ore for both stockpiles. This intermediate ore is then transported to the intermediate ore stockpile for temporary storage. The blending flow rate is based on the actual flow rate ratio. The original ore index for the first type of original ore participating in a ore blending process; The original ore index for the second type of original ore participating in a ore blending process; for The feed flow rate corresponding to the original ore during a single batching process; for The feed flow rate corresponding to the original ore during a single batching process; This refers to the intermediate ore index for dual stockpiles.

8. A multi-stage ore blending system with optimized flow ratio, characterized in that, To implement the multi-stage ore blending method as described in any one of claims 1-7, comprising: The stockpile data acquisition module is used to determine the number of raw ore stockpiles participating in ore blending and to obtain the raw ore indicators and target ore blending indicators for each raw ore stockpile. The ore blending strategy scheduling module is used to select the execution path based on the number of original ore stockpiles; The three-stockyard ore blending module is used to execute the three-stockyard ore blending strategy to obtain the finished ore from the three stockyards; The dual stockpile initial calculation module is used to calculate the initial ore blending flow ratio based on the original ore index and target ore blending index of the two original ore stockpiles, and select direct ore blending in the dual stockpiles or multiple ore blending in the dual stockpiles according to the relationship between the initial ore blending flow ratio and the set threshold. The dual-stockyard direct ore blending module is used to perform dual-stockyard direct ore blending, blending the raw ore from two raw ore stockpiles according to the initial blending flow ratio to obtain dual-stockyard finished ore; The dual-stockyard multiple ore blending module is used to execute the dual-stockyard multiple ore blending strategy to ultimately obtain the dual-stockyard finished ore.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the multi-stage ore blending method as described in any one of claims 1-7.

10. A storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the multi-stage ore blending method as described in any one of claims 1-7.

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