A port-based method and system for producing blended ore

Abstract

A method and system for producing blended ore based on ports provided by the present invention include the steps of: obtaining the demand target of blended ore for a target steel enterprise; obtaining a simulated production formula according to the target demand components; marking preselected supply ports; determining the simulated transportation time for each preselected supply port to supply materials to the target steel enterprise; determining the simulated feeding duration for each preselected supply port to supply materials to the target steel enterprise; obtaining the estimated feeding quality of each preselected supply port; obtaining the unit supply price of each preselected supply port; obtaining the secondary calculated cost (considering costs comprehensively) according to the price influence coefficient, time influence coefficient, and quality influence coefficient; and allocating feeding task orders to standby supply ports. The method and system for producing blended ore based on ports provided by the present invention fully consider the different demands of the target steel enterprise, facilitating the selection of standby supply ports according to the actual demands of the target steel enterprise for specific selection.

Description

Technical Field

[0001] This application relates to the technical field of sintering, and particularly to a method and system for producing blended ore based on a port. Background Art

[0002] In the technical field of iron and steel sintering, the chemical composition of the iron-containing raw materials (mainly various iron ores or other iron-containing raw materials) entering the sintering process is stable (mainly evaluated by the segregation degrees of SiO2 and TFe), which plays a huge role in the stable and smooth production of sintering and cost reduction and efficiency improvement. In actual production, in order to ensure the stability of the chemical composition of iron ore in the sintering process, enterprises will establish their own blending yards. After uniformly mixing the iron-containing raw materials from different origins in the blending yard, blended ore with stable chemical composition is produced as the iron-containing raw material (blended ore) for sintering production.

[0003] In the existing production of iron-containing raw materials, the sintering blending yard generally adopts a secondary blending process. Steel enterprises need to set up a primary yard and a secondary yard. The blending process is as follows: (1) Stack the incoming iron-containing raw materials in the primary yard; (2) Convey each iron-containing raw material to the pre-batching tank through a small belt for standby; (3) The stacker / reclaimer spreads various iron-containing raw materials from the pre-batching tank layer by layer in the secondary yard to a set height; (4) The stacker / reclaimer conveys the well-blended mixture to the sintering process for use in an intercepted manner. The stock in the secondary yard generally meets the production needs of steel enterprises for 6 to 7 days. The yard covers a large area (for a certain factory, the primary yard covers an area of 500m×250m, and the secondary yard covers an area of 500m×100m). For steel enterprises to adopt the secondary blending process by themselves, the investment is high and the equipment is complex. In iron and steel production, the operation rates of sintering and blast furnaces are both above 0.9, and the operation rates of the primary yard and the secondary yard are generally about 0.7. The production capacities of the equipment in the primary yard and the secondary yard are not fully utilized either.

[0004] Moreover, for steel enterprises to adopt the secondary blending process by themselves, there are also the following disadvantages: (1) The material piles in the secondary yard are more than ten meters high. Due to open-air operation, material collapse often occurs during the rainy season. In addition, the blending stacker and the blending reclaimer are large-yard equipment, with high daily maintenance and major overhaul costs, poor environment, and great difficulty in maintenance; (2) In the process of spreading and intercepting, there are nearly 100,000 tons of blended ore piles in the secondary yard, and the production cycle is as long as seven or eight days; (3) The production cycle is long, the traceability of the chemical composition of the mixture is poor, and it is difficult to perform equal-silicon operation within the cycle.

[0005] In view of this, it is necessary to provide a method for producing blended ore based on a port to solve at least some of the above technical problems. Summary of the Invention

[0006] In order to provide blended ore that meets the needs of steel enterprises for steel enterprises on the premise of avoiding each steel enterprise from establishing its own dedicated blending yard (primary yard and secondary yard), the present application provides a method and system for producing blended ore based on a port.

[0007] The first aspect of the present application provides a method for producing blended ore based on a port, including:

[0008] Obtain the blending ore demand target of the target steel enterprise, where the demand target includes the target demand weight, target demand composition, target arrival time, and target demand address;

[0009] Obtain the simulated production formula according to the target demand composition;

[0010] Obtain the port production formula of each blending ore port, match the port production formula with the simulated production formula, and mark the blending ore port whose port production formula conforms to the simulated production formula as the preselected feeding port;

[0011] Obtain the port address of each preselected feeding port, and determine the simulated transportation time for each preselected feeding port to supply materials to the target steel enterprise according to the port address, target demand address, and the transportation route between the port address and the target demand address;

[0012] Determine the simulated feeding duration for each preselected feeding port to supply materials to the target steel enterprise according to the target arrival time and the simulated transportation time;

[0013] Obtain the unit supply price for each preselected feeding port to supply materials to the target steel enterprise. The unit supply price includes transportation cost, production cost, and target profit. Among them, the unit price can be obtained by calculating with formula 3; obtain the estimated feeding quality for each preselected feeding port to supply materials to the target steel enterprise;

[0014] Obtain the secondary calculation cost (comprehensively considering costs) according to the preset price impact coefficient, preset transportation time impact coefficient, and preset quality impact coefficient, sort the preselected feeding ports according to the level of the secondary calculation cost (comprehensively considering costs) for feeding priority, and obtain the standby feeding port according to the corresponding feeding priority. Among them, the preset price impact coefficient, preset transportation time impact coefficient, and preset quality impact coefficient are at least 1;

[0015] Allocate the feeding task order to the standby feeding port.

[0016] In one implementation, the method for producing blended ore based on a port further includes: obtaining the feeding production capacity of each preselected feeding port to supply materials to the target steel enterprise within the simulated feeding duration; the demand target further includes the target demand weight; the step of allocating the feeding task order to the standby feeding port specifically includes:

[0017] According to the target demand weight and the feeding production capacity of the alternative feeding ports corresponding to the feeding priority, the target demand weight is split into combined orders completed by a combination of multiple alternative feeding ports, and the combined orders include multiple feeding task orders;

[0018] Send the feeding task order to the corresponding alternative feeding port.

[0019] In one implementation, the method for producing blended ore based on ports further includes the steps of:

[0020] Obtain the current production status of the alternative feeding port with the feeding task order;

[0021] If the current production status of the alternative feeding port with the feeding task order is an abnormal status, obtain the alternative feeding port corresponding to the abnormal status as the abnormal feeding port;

[0022] Obtain the underfeeding weight that the abnormal feeding port has not completed for feeding;

[0023] Update the underfeeding weight to the target demand weight and enter step S10.

[0024] In one implementation, in the step of obtaining the simulated production formula according to the target demand composition;

[0025] Obtain the operating parameters of the batching bins and the high-intensity mixers at the blending ore port, and establish a blended ore production model;

[0026] Use the blending production model to simulate the blending production that meets the target demand composition, and obtain the simulated production formula whose simulated production result meets the target demand composition; or

[0027] Determine the target formula according to the target demand composition, and obtain the simulated production formula that meets the target formula from the target formula and the preset formula library.

[0028] In one implementation, "Obtain the feeding production capacity of each preselected feeding port within the simulated feeding duration;" in step S60 specifically includes:

[0029] Obtain the current feeding production capacity corresponding to the current in-port reserve raw materials of each preselected feeding port within the simulated feeding duration;

[0030] Obtain the in-transit feeding production capacity corresponding to the in-transit conveying raw materials that arrive at the preselected feeding port before the current feeding production capacity is consumed;

[0031] Obtain the feeding production capacity of each preselected feeding port within the simulated feeding duration through the current feeding production capacity and the in-transit feeding production capacity.

[0032] In one implementation, the method for producing blended ore based on ports further includes:

[0033] The blending ore demand target in step S10 further includes a target demand quality, and the target demand quality includes high-quality blending ore, medium-quality blending ore, and low-quality blending ore;

[0034] In step S30, "marking the port of the blended material whose port production formula conforms to the simulated production formula as the preselected feeding port" specifically means:

[0035] If the target demand quality is high-quality blending ore, then mark the port of the blended material whose port production formula is consistent with the simulated production formula as the preselected feeding port;

[0036] If the target demand quality is medium-quality blending ore or low-quality blending ore, then mark the port of the blended material whose port production formula conforms to the simulated production formula as the preselected feeding port.

[0037] In one implementation manner, the blending ore production method based on the port further includes:

[0038] If the target demand quality is high-quality blending ore, then the preset price influence coefficient is 1;

[0039] If the target demand quality is low-quality blending ore, then the preset transportation time influence coefficient and / or the preset quality influence coefficient is 1.

[0040] In one implementation manner, the steps of obtaining the secondary calculation cost (comprehensively considering the cost) according to the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient specifically include:

[0041] Use the formula PJ = Zk * Yk * Tk * P to calculate the secondary calculation cost PJ, where Zk is the preset quality influence coefficient, Yk is the preset price influence coefficient, Tk is the preset transportation time influence coefficient, P is the unit feeding price, J is any target steel enterprise, and k is any preselected feeding port.

[0042] The second aspect of the embodiments of the present application provides a blending ore production system,

[0043] The blending ore production system includes: a plurality of production planning modules and a plurality of port blended material yard control modules, and a port blending ore cloud server connected to the plurality of production planning modules and the plurality of port blended material yard control modules;

[0044] The production planning module is used to obtain the blending ore demand target of the target steel enterprise, and the demand target includes the target demand weight, the target demand component, the target arrival time at the yard, and the target demand address;

[0045] The port blending yard control module is used to obtain a simulated production formula according to the target required composition, match the port production formula with the simulated production formula, and mark the blending yard ports where the port production formula conforms to the simulated production formula as preselected feeding ports; obtain the port addresses of each preselected feeding port, and determine the simulated transportation time for each preselected feeding port to supply materials to the target steel enterprise according to the port address, the target demand address, and the transportation route between the port address and the target demand address; determine the simulated feeding duration of each preselected feeding port according to the target arrival time and the simulated transportation time; obtain the unit supply price for each preselected feeding port to supply materials to the target steel enterprise, where the unit supply price includes transportation cost, production cost, and target profit; obtain the estimated feeding quality for each preselected feeding port to supply materials to the target steel enterprise; obtain the secondary calculated cost (considering costs comprehensively) according to the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient, sort the preselected feeding ports according to the level of the secondary calculated cost (considering costs comprehensively), and obtain the standby feeding ports according to the corresponding feeding priorities; traverse each standby feeding port according to the feeding priority until the combined feeding output of multiple standby feeding ports reaches the target required weight, and generate a combined order, where the combined order includes multiple feeding task orders; split the target required weight into a combined order completed by a combination of multiple standby feeding ports according to the feeding production capacity of the standby feeding ports corresponding to the feeding priority, where the combined order includes multiple feeding task orders; and send the feeding task orders to the corresponding standby feeding ports.

[0046] In one implementation, the method for producing blended ore based on a port further includes:

[0047] The port blending yard control system is further used to obtain the current production status of the standby feeding ports with feeding task orders; if the current production status of the standby feeding ports with feeding task orders is an abnormal status, obtain the standby feeding ports corresponding to the abnormal status as abnormal feeding ports; obtain the short-supplied weight of the abnormal feeding ports that have not completed the feeding; and update the short-supplied weight to the target required weight.

[0048] As can be seen from the above technical solutions, for a method and system for producing blended ore based on a port provided in this application, the steel enterprise sends the demand information for blended ore to the port blended ore cloud server through the production planning module. The port blended ore cloud server is communicatively connected to the port blending yard control modules distributed in various locations, obtains the real-time production status of each port blending yard, obtains the feeding information of each port, and then matches the demand information for blended ore of the steel enterprise with the feeding information of each port blending yard according to the predetermined priority, so as to select the port blending yard that provides blended materials from each port. Through this setting, each steel enterprise can obtain the blended ore that meets the requirements on the premise of avoiding each steel enterprise from establishing its own dedicated blending yard.

[0049] Beneficial effects:

[0050] The method for producing blended ore based on a port provided by this application sets the production link of the blended ore at the port. By obtaining the demand target of the blended ore of the target steel enterprise, the demand target includes the target demand components, the target arrival time, and the target demand address. Then, the target demand components of the target steel enterprise are compared with the port production formulas of each port, and the port for the blended material that can meet the feeding components is obtained as the preselected feeding port, so as to meet the demand of the target steel enterprise for the target demand components. At the same time, based on the simulated transportation time for feeding the target steel enterprise by each preselected feeding port, the unit supply price for feeding the target steel enterprise by each preselected feeding port, and the estimated feeding quality for feeding the target steel enterprise by each preselected feeding port, the secondary calculation cost (comprehensively considering the cost) is obtained according to the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient. The preselected feeding ports are sorted according to the ascending order of the secondary calculation cost (comprehensively considering the cost), and the standby feeding ports are obtained according to the corresponding feeding priorities. The feeding order is set with priorities, and then the standby feeding ports that meet the requirements of the priorities are used for feeding. The present invention fully considers the different demands of the target steel enterprises, which is convenient for selecting the standby feeding ports according to the actual demands of the target steel enterprises to make specific selections; the method for producing blended ore based on a port provided by this application, compared with the traditional production scheme of blended ore, avoids each steel enterprise from establishing its own dedicated blended material yard (primary yard and secondary yard), thus avoiding a large amount of ore storage, reducing the occupation of funds, and reducing the occupation of yard area. Brief description of the drawings

[0051] In order to more clearly illustrate the technical solutions of this application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0052] Figure 1 It is a schematic diagram of the production process flow of the blended ore provided by the embodiment of this application;

[0053] Figure 2 It is a schematic diagram of the flow of a method for producing blended ore based on a port provided by the embodiment of this application;

[0054] Figure 3 It is a schematic diagram of the system of the blended ore production system provided by the embodiment of this application. Detailed implementation manners

[0055] In order to more clearly introduce the production process of the blended ore provided by the embodiment of this application, a necessary description of the production process of the blended ore in the port blended material yard will be given first.

[0056] As Figure 1 shown, the production process of the blended ore is as follows:

[0057] (1) After the raw materials in transit from overseas arrive at the port, on the one hand, the iron-containing raw material varieties can be stacked at the port terminal, and on the other hand, the raw materials can also be directly allocated to the corresponding iron ore raw material batching tanks.

[0058] (2) The reclaiming machine transports the raw materials of multiple varieties at the port terminal to the corresponding pre-batching tanks through conveyors. The raw materials for the production of the blended ore are various different iron ores. As Figure 1 shown, there are multiple (such as 13) pre-batching tanks, which means that at most multiple (such as 13) different iron ores can be blended.

[0059] (3) Multiple disk feeders respectively transport the corresponding raw materials in the pre-batching tanks to the metering system. During the transportation process, the multiple disk feeders simultaneously measure the feeding amount of the transportation.

[0060] (4) The metering system sends the prepared raw materials to the mixing device (such as a vertical high-strength mixer or a traditional mixer). The vertical high-strength mixer realizes the deep mixing of the raw materials by means of the stirring paddles rotating at high speed.

[0061] (5) The well-mixed materials are sent to the port for storage or to the target users through the transportation link.

[0062] As Figure 1 shown, the chemical compositions and prices of the various raw materials in each batching tank are known quantities.

[0063] The iron content TFe of the blended ore coming out of the vertical high-strength mixer can be calculated according to the following formula:

[0064]

[0065] Where: TFeN is the percentage of the iron element content of the iron ore in the Nth batching tank, and N is a positive integer less than or equal to the total number of batching tanks; GN is the ore blending flow rate of the iron ore in the Nth batching tank participating in ore blending, with the unit of t / min; G is the total ore blending flow rate of all batching tanks, with the unit of t / min.

[0066] The SiO2 content TSi of the blended ore coming out of the vertical high-strength mixer can be calculated according to the following formula:

[0067]

[0068] Where: TSiN is the percentage of the SiO2 content of the iron ore in the Nth batching tank, and N is a positive integer less than or equal to the total number of batching tanks; GN is the ore blending flow rate of the iron ore in the Nth batching tank participating in ore blending, with the unit of t / min; G: the total ore blending flow rate of all batching tanks, with the unit of t / min

[0069] The cost P of the blended ore coming out of the vertical high-intensity mixer can be calculated according to the following formula:

[0070]

[0071] Where: P is the production cost per unit of blended ore (unit feed price), unit: yuan / t; K is a coefficient, the production cost considering factors such as power consumption and mechanical depreciation, for example, K can take values from 1.05 to 1.1; PN: the unit price of iron ore in the Nth batching tank, unit: yuan / t; GN is the ore blending flow rate of the iron ore in the Nth batching tank participating in ore blending, unit t / min; G is the total ore blending flow rate of all batching tanks, unit t / min.

[0072] It should be noted that steel enterprises have a large demand for blended ore and require stable chemical compositions; during the production process, when producing the corresponding blended ore for a certain factory, its formula will remain stable; the port blended ore yard can generate production formulas corresponding to different qualities and prices in real time according to the existing iron ore sources and reserves in the port. The production formula is shown in Table 1:

[0073] Table 1: Production formula table of port blended ore yard

[0074]

[0075] As Figure 1 shown, various different ore types are mixed to produce blended ore. The production of blended ore is a physical mixing process. During the production process of blended ore, the most important control parameter is the stable flow ratio of each ore type during the production process.

[0076] As shown in Table 1, the chemical compositions of the ore types participating in the production of blended ore and the proportions of each chemical composition are known, so production formulas can be pre-generated. The qualities and costs of the blended ore with different production formulas are different. According to the historical production data of the blended ore yard (operating parameters of the batching tanks and high-intensity mixers in the port blended ore yard) or the requirements of each factory for blended ore, based on the blended ore production model constructed by Formula 1 to Formula 3, the production formula can be deduced in the blended ore production model. Each port blended ore yard generates a production formula according to the existing raw material storage situation, that is, the existing production formulas of each port are the production formulas that can be executed by each port blended ore yard.

[0077] In order to provide blended ore that meets the needs of steel enterprises for steel enterprises on the premise of avoiding each steel enterprise from establishing its own dedicated blended ore yard (primary ore yard and secondary ore yard), the present application provides a port-based method and system for producing blended ore.

[0078] As Figure 2 shown, the embodiment of the present application provides a port-based method for producing blended ore, including the steps:

[0079] S10. Obtain the demand target of the blended ore for the target steel enterprise, where the demand target includes the target demand composition, the target arrival time, and the target demand address.

[0080] Understandably, in this embodiment, the demand target of the blended ore for each target steel enterprise is obtained. The demand target includes the target demand composition, the target arrival time, and the target demand address. Among them, the target demand composition is generated by the steel enterprise based on its own production experience and order quality, and the target demand composition in the present invention is a known quantity; the arrival of the bulk blended ore at the target steel plant is a continuous transportation process, which can be understood that the transportation time meets the first arrival time date and the arrival deadline date. In the present invention, the target arrival time is described to meet the arrival deadline date; the target demand address is the current address of the target steel enterprise. For the demand target of the target steel enterprise, it is collected and obtained through the production planning module set in the corresponding target steel enterprise. Among them, the port address can be one or multiple, that is, it can be a single blending material port to supply the target steel enterprise, or multiple blending material ports to supply the target steel enterprise; if the port address is multiple, the demand task order can be split into multiple copies according to the different port addresses.

[0081] S20. Obtain the simulated production formula according to the target demand composition. Specifically, determine the target formula according to the target demand composition of the target steel enterprise, and determine the simulated production formula according to the target formula.

[0082] In the actual application process, each target steel enterprise (the blending yard) has its own rich batching data, that is, the production formula of the blended ore. Each kind of blended ore has the corresponding ore blending ratio (production formula) of different ore types; different steel enterprises have different technical parameter requirements for the blended ore. For a single steel enterprise, the steel enterprise requires the various chemical components in the blended ore to be stable; however, for different steel enterprises, the requirements for the blended ore of each steel enterprise are different. The sintering, blast furnace and other processes of each steel enterprise adapt to the requirements of the composition of their respective blended ores. Specifically, different chemical components have a great impact on the operation of sintering and blast furnaces, and have a great impact on the cost of the steel enterprise. The blended ore with high grade and low harmful elements has a high cost, and the operation of sintering and blast furnace processes is simple; the blended ore with low grade and high harmful elements has a low cost, and the operation of sintering and blast furnace processes is complex. The situation of each steel enterprise is different. Some steel enterprises are suitable to use high-quality ores, some steel enterprises are suitable to use low-quality ores, and most steel enterprises use medium-quality ores; the basic requirement is that the chemical composition is stable. Each steel enterprise has formed its own operation habits in many years of production. For a steel enterprise that has long used low-quality ores, when it is replaced with high-quality ores, it will instead cause production inadaptability, and vice versa.

[0083] In the embodiments of the present application, the target formula can be provided in advance by the corresponding steel enterprise, or obtained by simulation through a pre-established blending ore production model. Specifically: obtain the operating parameters of the batching bins and high-intensity mixers in the port blending yard, and establish a blending ore production model according to the above formulas 1, 2, and 3; use the blending production model to simulate the blending production that meets the required components, simulate the production process, modify different components, and directly obtain the blending ore production results from the blending ore production model, so as to obtain blending ore formulas (target formulas) of various different qualities.

[0084] S30. Obtain the port production formulas of each blending ore port, match the port production formulas with the simulated production formulas, and mark the blending ore ports whose port production formulas conform to the simulated production formulas as preselected feeding ports.

[0085] Specifically, due to different requirements for blending ore from different steel enterprises, the port blending yard can provide a certain amount of blending ore according to its own production capacity. Each port blending yard can provide a certain type of blending ore, that is, there are multiple port production formulas. By matching the obtained port production formulas with the simulated production formulas, and marking the port blending yards whose port production formulas conform to the simulated formulas as preselected feeding ports. It should be noted that the port production formula conforming to the simulated production formula here does not mean that the port production formula is exactly the same as the simulated production formula, but that the blending ore produced according to the port production formula meets the requirements of the blending ore produced according to the simulated production formula in terms of key indicators (a certain component or several components meet the proportion range). In the embodiments of the present application, the key indicators of the blending ore are: the segregation degrees of SiO2 and TFe in the blending ore. Specifically, in the embodiments of the present application, the judgment condition for the quality of the blending ore is that high TFe is of high quality and low SiO2 is of high quality; in actual production, there may be more requirements for quality, for example, considering the Al2O3 component.

[0086] S40. Obtain the port addresses of each preselected feeding port, and determine the simulated transportation time for each preselected feeding port to supply materials to the target steel enterprise according to the port addresses, the target demand addresses, and the transportation routes between the port addresses and the target demand addresses.

[0087] Understandably, in actual production, due to the large target demand weight of the target steel enterprise within a certain period, generally, a single port cannot meet the feeding demand, and usually multiple ports need to cooperate to provide and transport the blended ore for the target steel enterprise. Optionally, each feeding port is provided with a corresponding port address. By combining the port address and the target demand address of the target steel enterprise with big data, artificial intelligence or workers' experience, the transportation route can be planned. The transportation route includes the transportation mode and the transportation mileage of each transportation mode, and then the simulated transportation time for each preselected feeding port to supply the target steel enterprise can be determined.

[0088] Optionally, the transportation mode is at least one of water transportation mode, railway transportation mode, and truck transportation mode. If the transportation mode includes two or more different modes, the influence of the conversion process is not considered.

[0089] S50. Determine the simulated feeding duration for each preselected feeding port to supply the target steel enterprise according to the target arrival time and the simulated transportation time.

[0090] In the actual application process, on the premise that the steel enterprise has strict requirements on the quality and price of the blended ore, it also requires that the blended ore must be delivered within the predetermined time to ensure the stable production of the steel enterprise. Therefore, it is necessary to determine the simulated feeding duration of each preselected feeding port according to the target arrival time and the simulated transportation time.

[0091] It should be noted that the simulated feeding durations of different port blending yards for the same steel enterprise are different. In the actual process, the blended ore can be transported in batches. After a certain weight of the blended ore is produced, a part of the blended ore will be transported first.

[0092] S60. Obtain the unit supply price for each preselected feeding port to supply the target steel enterprise. The unit supply price includes transportation cost, production cost, and target profit; obtain the estimated feeding quality for each preselected feeding port to supply the target steel enterprise.

[0093] Optionally, the unit price can also be calculated by formula 3.

[0094] Understandably, after the port blended ore is produced, due to factors such as vibration during transportation, fine particles in the blended ore will fall through the pores between large particles and accumulate at the bottom of the transport container, resulting in a decrease in the quality of the blended ore (i.e., particle size segregation). The decrease in the quality of the blended ore will affect the sintering quality of the next process. The obvious segregation is positively correlated with the vibration intensity and the long transportation time during transportation. In the present invention, the estimated feeding quality from the preselected feeding port to the target steel enterprise can be obtained through simulation analysis, or the estimated feeding quality from the preselected feeding port to the target steel enterprise can be obtained according to historical experimental data or historical experience.

[0095] Understandably, the designed estimated feeding quality is related to the particle size segregation of the blended ore reaching the target steel enterprise. If the particle size segregation of the blended ore obtained by the target steel enterprise is small, the estimated feeding quality is good; if the particle size segregation of the blended ore obtained by the target steel enterprise is large, the estimated feeding quality is poor. In the actual operation process of the present invention, the transportation particle size segregation can be estimated according to the transportation route and the corresponding transportation environment.

[0096] S70. Obtain the secondary calculation cost (comprehensively considering the cost) according to the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient. Sort the preselected feeding ports according to the ascending order of the secondary calculation cost (comprehensively considering the cost), and obtain the standby feeding ports according to the corresponding feeding priorities. Among them, the minimum values of the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient are 1.

[0097] Optionally, in the actual application process, if the target steel enterprise has certain restrictions on the price of the blended ore and needs to reduce the cost for the steel enterprise itself while ensuring the stable production of the steel enterprise, the value of the price influence coefficient can be increased. Sort the preselected feeding ports according to the unit supply price, and take the lower price as the priority condition to preferentially provide a suitable feeding port for the steel enterprise; if the target steel enterprise has certain restrictions on the simulated feeding duration (since the longer the simulated feeding duration, the more uncertain factors will increase, which may lead to the shutdown of the target steel enterprise and indirectly increase the comprehensively considered cost), and it is necessary to reduce the uncertain factors while ensuring the stable production of the steel enterprise, the preset transportation time influence coefficient can be increased. Sort the preselected feeding ports according to the simulated feeding duration, and take the shorter simulated feeding duration as the priority condition to preferentially provide a suitable feeding port for the steel enterprise; if the target steel enterprise has certain restrictions on the estimated feeding quality of the blended ore (if the particle size segregation of the blended ore after arrival is large, it is necessary to remix or sinter at the steel enterprise, resulting in a poor quality and indirectly increasing the comprehensively considered cost), the preset quality influence coefficient can be increased. Sort the preselected feeding ports according to the preset quality influence coefficient, and take the smaller particle size segregation as the priority condition to preferentially provide a suitable feeding port for the steel enterprise.

[0098] It should be noted that in the case of similar transportation environments, since the shorter the transportation time, the smaller the transportation particle size segregation of the mixed material during transportation, the target steel enterprise may choose the feeding port due to the urgent material use time or transportation segregation. Therefore, the value of the time influence coefficient can be increased to sort the preselected feeding ports, and take the shorter transportation time as the priority condition to provide more feeding ports for the steel enterprise.

[0099] It should be noted that in general, in order to ensure the consistency of incoming materials or the quality of blended ore, steel enterprises will try to select ports with high supply quality. At this time, the value of the quality influence coefficient can be increased, the preselected supply ports can be sorted according to the supply priority, and the ports with high quality can be used as the priority conditions to provide more supply ports for steel enterprises.

[0100] It can be understood that in the present invention, price, transportation time, and quality are fully considered to provide decision-making factors for the target steel enterprise. The secondary calculation cost is obtained according to the preset price influence coefficient, preset transportation time influence coefficient, and preset quality influence coefficient. The preselected supply ports are sorted according to the ascending order of the secondary calculation cost for the supply priority ranking, and the standby supply ports are obtained according to the corresponding supply priority. Among them, the preset price influence coefficient, preset transportation time influence coefficient, and preset quality influence coefficient are at least 1. Among them, the lower the secondary calculation cost (comprehensively considering the cost), the higher the corresponding priority, which is convenient for the target steel enterprise to make corresponding selections according to its actual needs.

[0101] S80. Allocate the supply task order to the standby supply port.

[0102] Specifically, obtain the supply production capacity of each preselected supply port for supplying materials to the target steel enterprise within the simulated supply duration; the demand target also includes the target demand weight; step S80 specifically includes: splitting the target demand weight into combined orders completed by a combination of multiple standby supply ports according to the supply production capacity of the standby supply port corresponding to the supply priority. The combined order includes multiple supply task orders; send the supply task order to the corresponding standby supply port.

[0103] The method for producing blended ore based on ports provided by this application sets the production process of blended ore at ports. By obtaining the demand targets for blended ore of the target steel enterprise, the demand targets include target demand components, target arrival time, and target demand address. Then, the target demand components of the target steel enterprise are compared with the port production formulas of each port, and the port that can supply the blended ore meeting the feeding components is obtained as the preselected feeding port, so as to meet the demand of the target steel enterprise for the target demand components. At the same time, based on the simulated transportation time for each preselected feeding port to supply the target steel enterprise, the unit supply price for each preselected feeding port to supply the target steel enterprise, and the estimated feeding quality for each preselected feeding port to supply the target steel enterprise, the secondary calculation cost (comprehensively considering the cost) is obtained according to the preset price influence coefficient, preset transportation time influence coefficient, and preset quality influence coefficient. The preselected feeding ports are sorted according to the ascending order of the secondary calculation cost (comprehensively considering the cost), and the standby feeding ports are obtained according to the corresponding feeding priorities. The feeding order is set with priorities, and then the standby feeding ports that meet the requirements of the priorities supply the materials. The present invention fully considers the different demands of the target steel enterprise, facilitating the selection of the standby feeding port according to the actual demands of the target steel enterprise for specific selection. The method for producing blended ore based on ports provided by this application, compared with the traditional blended ore production plan, avoids each steel enterprise from establishing its own dedicated blended ore yards (primary yard and secondary yard), thus avoiding a large amount of ore storage, reducing the occupation of funds, and reducing the occupation of yard area.

[0104] In actual production, generally, the feeding capacity of the standby feeding port may not reach the required weight of the blended ore needed by a single steel enterprise. Then, the target demand weight can be split and completed by a combination of multiple standby feeding ports according to the feeding priority. For example, Steel Enterprise A needs 1 million tons. According to the feeding priority, there are standby feeding port 1, standby feeding port 2, standby feeding port 3, standby feeding port 4 until standby feeding port N in sequence. The production capacity of standby feeding port 1 within its simulated transportation time is 600,000 tons, the production capacity of standby feeding port 2 within its simulated transportation time is 300,000 tons, the production capacity of standby feeding port 3 within its simulated transportation time is 200,000 tons, and the production capacity of standby feeding port n within its simulated transportation time is several ten thousand tons. Then, 600,000 tons are supplied by standby feeding port 1, 300,000 tons are supplied by standby feeding port 2, and 100,000 tons are supplied by standby feeding port 3 to complete the target demand weight of Steel Enterprise A.

[0105] Further, it further includes steps: S91, obtaining the current production status of the standby feeding port with a feeding task order; S92, if the current production status of the standby feeding port with a feeding task order is an abnormal status, obtaining the standby feeding port corresponding to the abnormal status as the abnormal feeding port; S93, obtaining the short supply weight of the abnormal feeding port that has not completed feeding; S94, updating the short supply weight to the target demand weight, and entering step S10.

[0106] In actual production, during the production process of the target demand weight according to the production formula of the target steel enterprise at the standby feeding port, the feeding of the target steel enterprise may not be successfully completed due to abnormal interruptions (such as transportation line interruption, port equipment failure, natural disaster). Therefore, the standby feeding port is set as the abnormal feeding port, and the short supply weight of the abnormal feeding port that has not completed feeding is obtained and the short supply weight is updated to the target demand weight, and step S10 is returned. By modifying the feeding strategy in time after an accident occurs during feeding, the demand of the target steel enterprise is guaranteed.

[0107] Further, step S20 specifically includes: obtaining the operating parameters of the batching tank and the high-intensity mixer in the blending material port, and establishing a blending ore production model; using the blending production model to simulate the blending production that meets the target demand components, and obtaining the simulated production formula whose simulated production result meets the target demand components; or determining the target formula according to the target demand components, and obtaining the simulated production formula that meets the target formula from the target formula and the preset formula library.

[0108] In actual production, each steel enterprise has a blending ore menu adapted to its own enterprise situation. During the production of a certain steel enterprise, due to factors such as transformation, production and operation, and fluctuations in the international iron ore market, its blending ore menu will be adjusted. However, within a certain period of time, this menu is stable, and it is not allowed to frequently adjust this blending ore menu during production. That is, each steel enterprise has a blending ore menu adapted to its current enterprise situation. Therefore, it is necessary to establish a blending ore production model based on the operating parameters of the batching tank and the high-intensity mixer in the blending material port, and simulate the blending production that meets the target demand components, so as to avoid problems during blending production in actual situations, and at the same time, it is the optimal solution for each steel enterprise to have a stable blending ore of each component adapted to its production habits.

[0109] Further, the step of "obtaining the feeding production capacity of each preselected feeding port for the target steel enterprise within the simulated feeding duration" specifically includes: obtaining the current feeding production capacity corresponding to the current in-port reserve raw materials of each preselected feeding port within the simulated feeding duration; obtaining the in-transit feeding production capacity corresponding to the in-transit conveying raw materials that arrive at the preselected feeding port before the current feeding production capacity is consumed; obtaining the feeding production capacity of each preselected feeding port within the simulated feeding duration through the current feeding production capacity and the in-transit feeding production capacity.

[0110] Understandably, in the actual production process, the current in-port reserve raw materials at the preselected feeding port may vary in quantity, and cannot meet the feeding production capacity in a timely manner. Therefore, the in-transit feeding production capacity corresponding to the in-transit conveyed raw materials arriving at the preselected feeding port before the current feeding production capacity is consumed, and the current feeding production capacity are used to achieve the feeding production capacity of each preselected feeding port within the simulated feeding duration.

[0111] Furthermore, the target demand quality of the blended ore in step S10 further includes target demand qualities, which include high-quality blended ore, medium-quality blended ore, and low-quality blended ore; the specific operation of "marking the blended ore port whose port production formula conforms to the simulated production formula as the preselected feeding port" in step S30 is as follows: if the target demand quality is high-quality blended ore, then mark the blended ore port whose port production formula is consistent with the simulated production formula as the preselected feeding port; if the target demand quality is medium-quality blended ore or low-quality blended ore, then mark the blended ore port whose port production formula conforms to the simulated production formula as the preselected feeding port. Optionally, the high-quality blended ore in the present invention not only has good components of the blended ore, but also has a suitable blending degree after being transported to the target steel enterprise (i.e., small segregation of transportation particle size).

[0112] Understandably, the target demand qualities of each steel enterprise are inconsistent. Therefore, the target demand qualities are divided into high-quality blended ore, medium-quality blended ore, and low-quality blended ore, and then different methods are set according to different target demand qualities. Specifically, if the target demand quality is high-quality blended ore, then mark the blended ore port whose port production formula is consistent with the simulated production formula as the preselected feeding port; if the target demand quality is medium-quality blended ore or low-quality blended ore, then mark the blended ore port whose port production formula conforms to the simulated production formula as the preselected feeding port, so as to ensure the demand of the target steel enterprise for the target demand quality.

[0113] Furthermore, if the target demand quality is high-quality blended ore, then the preset price influence coefficient is 1; if the target demand quality is low-quality blended ore, then the preset transportation time influence coefficient and / or the preset quality influence coefficient is 1.

[0114] Understandably, if the target demand quality is high-quality blended ore, then only the preset transportation time influence system and the quality influence coefficient can be considered, requiring the fastest transportation time and the best quality of the blended ore, and the preset price influence coefficient does not need to be considered; if the target demand quality is low-quality blended ore, then the preset transportation time influence coefficient and the preset quality influence coefficient can be not considered, and only the preset price influence coefficient is considered to facilitate reducing the cost of the steel enterprise; if the target demand quality is medium-quality blended ore, then at least one of the preset transportation time influence coefficient, the preset price influence coefficient, and the preset production capacity influence coefficient can be considered, or it can also be preferably considered according to the actual situation.

[0115] Furthermore, the steps of obtaining the secondary calculation cost (comprehensively considering the cost) according to the preset price influence coefficient, preset transportation time influence coefficient, and preset quality influence coefficient specifically include: calculating the secondary calculation cost PJ using the formula PJ = Zk * Yk * Tk * P, where Zk is the preset quality influence coefficient, Yk is the preset price influence coefficient, Tk is the preset transportation time influence coefficient, P is the unit feeding price, J is any target steel enterprise, and k is any preselected feeding port.

[0116] It can be understood that considering the situation where the demand of Steel Enterprise A can be met by multiple ports, it is necessary to sort the supply of each port preferentially. After the production of blended ore at the port, factors such as vibration during transportation will cause fine particles in the blended ore to fall through the pores between large particles and accumulate at the bottom of the transport container, resulting in a decrease in the quality of the blended ore (i.e., particle size segregation). Therefore, segregation is related to the vibration intensity and vibration intensity duration during transportation; the price influence coefficient is the influencing factor of price on the order decision-making, and it is also the most important influencing factor. In addition, if the transportation time from the port's blended ore yard to the target steel enterprise is too long, due to more uncontrollable factors during transportation, some steel enterprises are sensitive to the transportation duration factor in some special scenarios (such as typhoon, rainy season, ice and snow season), then the transportation duration influence coefficient from each port to the target steel enterprise can be determined according to historical experimental data.

[0117] In actual production, P1 is the unit feeding price provided by the standby feeding port 1 to the target steel enterprise; P2 is the unit feeding price provided by the standby feeding port 2 to the target steel enterprise; P3 is the unit feeding price provided by the standby feeding port 3 to the target steel enterprise; Pm is the unit feeding price provided by the standby feeding port m to the target steel enterprise. Deviation

[0118] It can be understood that if the target steel enterprise has an ideal feeding quality (particle size segregation not greater than α), Zk is the preset quality influence coefficient of the target steel enterprise. If the preset quality influence coefficient is closer to 1, it indicates that the quality requirement for the ideal feeding quality is lower (the allowable deviation of particle size segregation is larger). In this embodiment, the preset quality influence coefficient can be defined according to the actual needs of the target steel enterprise. The preset quality influence coefficient can be 1, or other values such as 1.2 or 1.3. If the preset quality influence coefficient is equal to 1, it means that the target steel enterprise has a low requirement for particle size segregation (allowing the maximum particle size segregation, that is, not considering particle size segregation). The larger the preset quality influence coefficient, the higher the requirement degree of the target steel enterprise for particle size segregation.

[0119] It should be noted that the greater the particle segregation of the blended ore, the greater the impact of transportation on the quality of the blended ore. The target steel enterprise may remix the blended material after it arrives at the site, increasing the potential risk for the target steel enterprise that needs to maintain continuous production. Therefore, the estimated feeding quality can be converted into the secondary calculation cost.

[0120] Understandably, if the target steel enterprise has an ideal supply price (the unit is in a price not higher than β), and Yk is the preset price impact coefficient of the target steel enterprise. If the preset price impact coefficient is closer to 1, it indicates that the price requirement of the ideal supply price is lower (the allowable price deviation is larger). In this embodiment, the preset price impact coefficient can be defined according to the actual needs of the target steel enterprise. The price impact coefficient can be 1, or other values such as 1.05 or 1.4. If the price impact coefficient is equal to 1, it means that the impact of price is not considered.

[0121] It should be noted that if the quotation of the feeding port is higher, the price impact of the finished blended ore will increase, and the production cost of the target steel enterprise will increase. Therefore, the unit supply price can be converted into the secondary cost.

[0122] Understandably, if the target steel enterprise has an ideal transportation duration (the transportation duration is not greater than γ), and Yk is the preset transportation time impact of the target steel enterprise. If the preset transportation time impact is closer to 1, it indicates that the requirement for the length of the ideal transportation duration is lower (the allowable deviation of the arrival time at the steel enterprise is larger). In this embodiment, the ideal transportation duration can be defined according to the actual needs of the target steel enterprise. The ideal transportation duration can be 1, or other values such as 1.05 or 1.4. If the ideal transportation duration is equal to 1, it means that the impact of the transportation duration is not considered.

[0123] It should be noted that if the transportation time is long, the risks during transportation will increase, and the potential risk for the target steel enterprise that needs to maintain continuous production will become larger. Therefore, the transportation time can be converted into the secondary calculation cost.

[0124] Understandably, in the present invention, the preset quality impact coefficient, the preset price impact coefficient, and the preset transportation time impact coefficient are all converted into the secondary calculation cost.

[0125] A specific implementation manner provided by this application is as follows:

[0126] If the target steel enterprise is Steel Enterprise A, the target demand weight of the target demand steel enterprise is one million tons, the target demand quality is high-quality blended ore, the target demand components are known, and the simulated production formula can be obtained according to the target demand components;

[0127] Obtain the port production formulas of each blending material port, match the port production formulas with the simulated production formulas, and mark the blending material ports whose port production formulas conform to the simulated production formulas as preselected feeding ports. In this embodiment, the blending material ports whose port production formulas conform to the simulated production formulas include preselected feeding port 1, preselected feeding port 2, preselected feeding port 3 up to preselected feeding port M.

[0128] S40. Obtain the port addresses of each preselected feeding port, and determine the simulated transportation time for each preselected feeding port to supply materials to the target steel enterprise based on the port addresses, the target demand address, and the transportation routes between the port addresses and the target demand address. In this embodiment, the transportation route for preselected feeding port 1 to supply materials to the target steel enterprise includes 500 km by water transportation and 400 km by railway transportation, with a transportation duration of 20 days; the transportation route for preselected feeding port 2 to supply materials to the target steel enterprise includes 400 km by water transportation and 600 km by railway transportation, with a transportation duration of 22 days; the transportation route for preselected feeding port 3 to supply materials to the target steel enterprise includes 500 km by water transportation and 400 km by railway transportation, with a transportation duration of 21 days; the transportation route for preselected feeding port 4 to supply materials to the target steel enterprise includes 500 km by railway transportation and 600 km by truck transportation, with a transportation duration of 25 days; the transportation route for preselected feeding port 5 to supply materials to the target steel enterprise includes 500 km by water transportation and 100 km by truck transportation, with a transportation duration of 30 days; the transportation route for preselected feeding port M to supply materials to the target steel enterprise includes 2000 km by water transportation and 500 km by truck transportation, with a transportation duration of 50 days.

[0129] S50. Determine the simulated feeding duration for each preselected feeding port to supply materials to the target steel enterprise based on the target arrival time and the simulated transportation time. In this embodiment, the target arrival time requirement for the target steel enterprise is that all materials should arrive within 60 days. If the transportation duration of preselected feeding port 1 is 20 days, then the simulated feeding duration of preselected feeding port 1 is 40 days.

[0130] S60. Obtain the unit supply price for each preselected feeding port to supply materials to the target steel enterprise. The unit supply price includes transportation cost, production cost, and target profit; obtain the estimated feeding quality for each preselected feeding port to supply materials to the target steel enterprise.

[0131] S70. Obtain the secondary calculated cost (considering costs comprehensively) according to the preset price impact coefficient, the preset transportation time impact coefficient, and the preset quality impact coefficient. Sort the preselected feeding ports according to the high and low of the secondary calculated cost (considering costs comprehensively), and obtain the standby feeding ports according to the corresponding feeding priorities. Among them, the preset price impact coefficient, the preset transportation time impact coefficient, and the preset quality impact coefficient are at least 1.

[0132] According to the target demand weight and the feeding capacity of the alternative feeding ports corresponding to the feeding priorities, split the target demand weight into combined orders completed by a combination of multiple alternative feeding ports. The combined orders include multiple feeding task orders; send the feeding task orders to the corresponding alternative feeding ports.

[0133] In this embodiment, the target steel enterprise A needs to purchase 1 million tons of high-quality blended ore. In order to reduce particle size segregation and ensure the supply time, the feeding priorities are set according to the transportation time. The alternative feeding ports are ranked in order of feeding priority as follows: alternative feeding port 1, alternative feeding port 2, alternative feeding port 3, alternative feeding port 4, and so on until alternative feeding port N. The production capacity of alternative feeding port 1 during the simulated transportation time is 600,000 tons, the production capacity of alternative feeding port 2 during the simulated transportation time is 300,000 tons, the production capacity of alternative feeding port 3 during the simulated transportation time is 200,000 tons, and the production capacity of alternative feeding port n during the simulated transportation time is several ten thousand tons. Then, 600,000 tons are fed by alternative feeding port 1, 300,000 tons are fed by alternative feeding port 2, and 100,000 tons are fed by alternative feeding port 3 to complete the target demand weight of the target steel enterprise A.

[0134] The present invention also provides a blended ore production system, which includes a plurality of production planning modules, a plurality of port blended ore yard control modules, and a port blended ore cloud server connected to the plurality of production planning modules and the plurality of port blended ore yard control modules; wherein, the production planning module obtains the blended ore demand target of the target steel enterprise, and the demand target includes the target demand composition, the target arrival time, and the target demand address; the port blended ore yard control module is used to obtain a simulated production formula according to the target demand composition and send the simulated production formula to the port blended ore cloud server; the port blended ore cloud server is used to match the port production formula with the simulated production formula, mark the port of the blended ore whose port production formula conforms to the simulated production formula as a preselected feeding port; obtain the port address of each preselected feeding port, and determine the simulated transportation time for each preselected feeding port to supply materials to the target steel enterprise according to the port address, the target demand address, and the transportation route between the port address and the target demand address; determine the simulated feeding duration for each preselected feeding port to supply materials to the target steel enterprise according to the target arrival time and the simulated transportation time; obtain the preset quality influence coefficient for each preselected feeding port to transport the blended ore to the target steel enterprise; obtain the unit supply price for each preselected feeding port to supply materials to the target steel enterprise, and the unit supply price includes transportation cost, production cost, and target profit; obtain the secondary calculated cost (considering costs comprehensively) according to the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient, sort the preselected feeding ports according to the priority of feeding based on the secondary calculated cost (considering costs comprehensively), and obtain the standby feeding ports according to the corresponding feeding priority, wherein the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient are at least 1; allocate the feeding task order to the standby feeding ports.

[0135] As can be seen from the above technical solutions, a method and system for producing blended ore based on a port provided by an embodiment of the present application include a plurality of production planning modules, a plurality of port blended ore yard control modules, and a port blended ore cloud server connected to the plurality of production planning modules and the plurality of port blended ore yard control modules; wherein, the production planning module obtains the blended ore demand target of the target steel enterprise, and the demand target includes the target demand composition, the target arrival yard time, and the target demand address; the port blended ore yard control module is used to obtain a simulated production formula according to the target demand composition and send the simulated production formula to the port blended ore cloud server; the port blended ore cloud server is used to match the port production formula with the simulated production formula, mark the blended ore ports where the port production formula conforms to the simulated production formula as preselected feeding ports; obtain the port address of each preselected feeding port, and determine the simulated transportation time for each preselected feeding port to supply materials to the target steel enterprise according to the port address, the target demand address, and the transportation route between the port address and the target demand address; determine the simulated feeding duration for each preselected feeding port to supply materials to the target steel enterprise according to the target arrival yard time and the simulated transportation time; obtain the unit supply price for each preselected feeding port to supply materials to the target steel enterprise, and the unit supply price includes transportation cost, production cost, and target profit; obtain the estimated feeding quality for each preselected feeding port to supply materials to the target steel enterprise; obtain the secondary calculation cost according to the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient, sort the preselected feeding ports according to the ascending order of the secondary calculation cost to obtain the feeding priority, and obtain the standby feeding port according to the corresponding feeding priority, wherein the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient are at least 1; and allocate a feeding task order to the standby feeding port.

[0136] The present application has been described in detail above in combination with specific implementation manners and exemplary examples, but these descriptions should not be construed as limiting the present application. Those skilled in the art understand that without departing from the spirit and scope of the present application, various equivalent substitutions, modifications, or improvements can be made to the technical solutions and their implementation manners of the present application, and these all fall within the scope of the present application. The protection scope of the present application is subject to the appended claims.

Claims

1. A method for producing blended ore based on a port, characterized in that, It includes the following steps: S10. Obtain the blending ore demand target of the target steel enterprise, where the demand target includes the target demand components, the target arrival yard time, and the target demand address; S20. Obtain the simulated production formula according to the target demand components; S30. Obtain the port production formulas of each blending ore port, match the port production formulas with the simulated production formula, and mark the blending ore ports whose port production formulas conform to the simulated production formula as preselected feeding ports; S40. Obtain the port address of each of the preselected feeding ports, and determine the simulated transportation time for each of the preselected feeding ports to supply materials to the target steel enterprise according to the port address, the target demand address, and the transportation route between the port address and the target demand address; S50. Determine the simulated feeding duration for each of the preselected feeding ports to supply materials to the target steel enterprise according to the target arrival yard time and the simulated transportation time; S60. Obtain the unit supply price for each of the preselected feeding ports to supply materials to the target steel enterprise, where the unit supply price includes transportation cost, production cost, and target profit; obtain the estimated feeding quality for each of the preselected feeding ports to supply materials to the target steel enterprise; S70. Obtain the secondary calculated cost according to the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient, sort the preselected feeding ports in ascending order of the secondary calculated cost to obtain the feeding priority, and obtain the backup feeding ports according to the corresponding feeding priority, where the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient are at least 1; S80. Allocate feeding task orders to the backup feeding ports.

2. The port-based blending ore production method according to claim 1, wherein: It further includes the step of: obtaining the feeding production capacity of each of the preselected feeding ports to supply materials to the target steel enterprise within the simulated feeding duration; The demand target further includes the target demand weight; Step S80 specifically includes: According to the target demand weight and the feeding production capacity of the backup feeding ports corresponding to the feeding priority, split the target demand weight into combined orders completed by a combination of multiple backup feeding ports, where the combined orders include multiple feeding task orders; Send the feeding task orders to the corresponding backup feeding ports.

3. The port-based blending ore production method according to claim 2, wherein: It further includes the steps of: S91. Obtain the current production status of the backup feeding ports with the feeding task orders; S92. If the current production status of the backup feeding ports with the feeding task orders is an abnormal status, obtain the backup feeding ports corresponding to the abnormal status as abnormal feeding ports; S93. Obtain the under-supplied weight of the abnormal feeding ports that have not completed the feeding; S94. Update the under-supplied weight to the target demand weight, and enter step S10.

4. The port-based blending ore production method according to claim 2, wherein: Step S20 specifically includes: Obtain the operating parameters of the batching bins and the intensive mixers at the blending material port, and establish a blending ore production model; use the blending production model to simulate the blending production that meets the target demand composition, and obtain the simulation production formula whose simulation production result meets the target demand composition; or Determine the target formula according to the target demand composition, and obtain the simulation production formula that meets the target formula from the target formula and a preset formula library.

5. The port-based blending ore production method according to claim 2, wherein: The "obtaining the feeding capacity of each of the preselected feeding ports for the target steel enterprise during the simulated feeding duration" specifically includes: Obtain the current feeding capacity corresponding to the currently stocked raw materials at each of the preselected feeding ports during the simulated feeding duration; Obtain the in-transit feeding capacity corresponding to the in-transit conveying raw materials that arrive at the preselected feeding port before the current feeding capacity is consumed; Obtain the feeding capacity of each of the preselected feeding ports for the target steel enterprise during the simulated feeding duration through the current feeding capacity and the in-transit feeding capacity.

6. The port-based blending ore production method according to claim 2, wherein: The blending ore demand target in step S10 further includes a target demand quality, and the target demand quality includes high-quality blending ore, medium-quality blending ore, and low-quality blending ore; In step S30, "marking the blending material port whose port production formula conforms to the simulation production formula as a preselected feeding port" specifically means: If the target demand quality is high-quality blending ore, then mark the blending material port whose port production formula is consistent with the simulation production formula as a preselected feeding port; If the target demand quality is medium-quality blending ore or low-quality blending ore, then mark the blending material port whose port production formula conforms to the simulation production formula as a preselected feeding port.

7. The port-based blending ore production method according to claim 6, wherein: If the target demand quality is high-quality blending ore, then the preset price influence coefficient is 1; If the target demand quality is low-quality blending ore, then the preset transportation time influence coefficient and / or the preset quality influence coefficient is 1.

8. The port-based homogenized ore production method according to claim 1, characterized in that Step S70 specifically includes: Calculate the secondary calculation cost PJ using the formula PJ = Zk * Yk * Tk * P, where Zk is the preset quality influence coefficient, Yk is the preset price influence coefficient, Tk is the preset transportation time influence coefficient, P is the unit feeding price, J is any target steel enterprise, and k is any preselected feeding port.

9. A homogenized ore production system, characterized in that, It includes multiple production planning modules and multiple port blending material yard control modules, and a port blending ore cloud server connected to the multiple production planning modules and the multiple port blending material yard control modules; wherein, The production planning module obtains the blending ore demand target of the target steel enterprise, and the demand target includes the target demand composition, the target arrival time, and the target demand address; The port blending yard control module is used to obtain a simulated production formula according to the target required components and send the simulated production formula to the port blended ore cloud server; The port blended ore cloud server is used to match the port production formula with the simulated production formula, mark the blending yard ports where the port production formula conforms to the simulated production formula as preselected feeding ports; obtain the port addresses of each of the preselected feeding ports, and determine the simulated transportation time for each of the preselected feeding ports to supply materials to the target steel enterprise according to the port address, the target required address, and the transportation route between the port address and the target required address; determine the simulated feeding duration for each of the preselected feeding ports to supply materials to the target steel enterprise according to the target arrival yard time and the simulated transportation time; obtain the unit supply price for each of the preselected feeding ports to supply materials to the target steel enterprise, where the unit supply price includes transportation cost, production cost, and target profit; obtain the estimated feeding quality for each of the preselected feeding ports to supply materials to the target steel enterprise; obtain the secondary calculation cost according to a preset price influence coefficient, a preset transportation time influence coefficient, and a preset quality influence coefficient, sort the preselected feeding ports in ascending order of the secondary calculation cost to obtain the feeding priority, and obtain the standby feeding ports according to the corresponding feeding priority, where the preset price influence coefficient, the preset transportation time influence coefficient, and the preset quality influence coefficient are at least 1; and allocate a feeding task order to the standby feeding ports.

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