A port-based blended ore order allocation method and system

Abstract

The application provides a port-based mixed ore order allocation method and system, which comprises the following steps: obtaining target demand components of a target steel enterprise; obtaining a simulated production formula according to the target demand components; determining various simulated iron ore raw materials according to the simulated production formula; obtaining a remote port formula in the simulated production formula, wherein the remote raw material in the remote port formula is a simulated iron ore raw material with a particle size in a preset particle size range and a proportion not less than a preset threshold; obtaining a preselected supply port; and sending a supply task order for providing a semi-finished mixed ore to the preselected supply port. The port-based mixed ore order allocation method solves the technical problem that the existing method does not consider the influence of transportation on segregation, resulting in poor mixing degree and decreased quality of the mixed ore after the completely mixed mixed ore at the supply port reaches the target steel enterprise.

Description

Technical Field

[0001] This invention relates to the field of sintering technology, and in particular to a port-based method and system for allocating mixed ore orders. Background Technology

[0002] In the field of iron and steel sintering technology, the stability of the chemical composition (mainly various iron ores or other iron-containing raw materials) of the iron-containing raw materials entering the sintering process is crucial for stable and smooth sintering production, cost reduction, and efficiency improvement. In actual production, to ensure the stability of the chemical composition of iron ore in the sintering process, enterprises establish their own blending yards. These yards uniformly mix iron-containing raw materials from different origins to produce a chemically stable blended ore, which serves as the iron-containing raw material (blended ore) for sintering production.

[0003] In existing iron-containing raw material production, the sintering and mixing yard generally adopts a two-stage mixing process. Steel companies need to set up a primary yard and a secondary yard. The mixing process is as follows: (1) All iron-containing raw materials entering the plant are piled up in the primary yard; (2) All iron-containing raw materials are transported to the pre-mixing tank by a small belt for later use; (3) The stacker / reclaimer stacks the various iron-containing raw materials from the pre-mixing tank layer by layer in the secondary yard to a set height; (4) The stacker / reclaimer transports the stacked and mixed mixture to the sintering process by interception. The storage of materials in the secondary yard generally meets the production needs of steel companies for 6 to 7 days. The yard occupies a large area (the primary yard of a certain plant occupies 500m×250m, and the secondary yard occupies 500m×100m). Steel companies that adopt the two-stage mixing process themselves have high investment and complex equipment. In steel production, the operating rates of sintering and blast furnaces are both above 0.9, while the operating rates of primary and secondary material yards are generally around 0.7, and the capacity of equipment in primary and secondary material yards is not fully utilized.

[0004] Furthermore, the steel companies themselves adopt the secondary mixing process, which has the following disadvantages: (1) The secondary material yard has a stockpile of more than ten meters high. Due to open-air operation, material collapse often occurs during the rainy season. Moreover, the mixing stockpile machine and the mixing reclaimer are large-scale material yard equipment, with high daily maintenance and overhaul costs, harsh environment, and great difficulty in maintenance; (2) In the process of flat cutting, the secondary material yard has a mixing stockpile of nearly 100,000 tons, 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 the silicon-isolating operation within the cycle is difficult.

[0005] In the existing technology, the impact of transportation on the segregation of port blended ore during the process of transporting it from the port blending yard to the target steel enterprise has not been studied. This results in a decrease in the quality of the fully blended port blended ore after it is transported to the target steel enterprise due to particle size segregation during transportation. Summary of the Invention

[0006] The port-based blending ore production and distribution method provided by this invention solves the technical problem that existing methods do not consider the impact of transportation on segregation, resulting in poor blending degree and reduced blending quality of the blended ore after it has been fully blended at the supply port and has arrived at the target steel enterprise.

[0007] The first aspect of this invention provides a port-based method for allocating blended ore orders, comprising the steps of: obtaining the target blended ore demand of a target steel enterprise, the target demand including target demand components; obtaining a simulated production formula based on the target demand components; determining various simulated iron ore raw materials based on the simulated production formula; obtaining remote port formulas in the simulated production formula, wherein the remote raw materials in the remote port formula are simulated iron ore raw materials whose particle size is within a preset particle size range and whose proportion is not less than a preset threshold; obtaining the port production formulas of each blending port, matching the port production formulas with the remote port formulas, and marking the blending ports whose port production formulas match the remote port formulas as pre-selected supply ports; and sending a supply task order for providing semi-finished blended ore to the pre-selected supply ports, wherein the semi-finished blended ore is formed by blending and processing the raw materials in all remote port formulas at the corresponding pre-selected supply ports.

[0008] Furthermore, the demand target also includes the target demand weight; the port-based blending ore order allocation method also includes the step of obtaining the semi-finished product demand weight of the semi-finished product blending ore based on the target demand weight and the remote port formula.

[0009] Furthermore, the port-based method for allocating blended ore orders also includes the following steps: obtaining the number of remote premixing tanks for each preselected supply port; determining whether the number of remote raw material types in the remote port formula is greater than the number of remote premixing tanks; if the number of remote raw material types in the remote port formula is greater than the number of remote premixing tanks, then increasing the preset threshold and updating the remote raw material in the remote port formula.

[0010] Furthermore, the demand target also includes the target demand address; the port-based blending ore order allocation method also includes the following steps: obtaining the transportation route based on the port address of the pre-selected supply port and the target demand address; predicting the estimated transportation environment of the transportation route during the transportation period; if the estimated transportation environment is a poor environment, then narrowing the range value of the preset particle size range and updating the remote raw materials in the remote port formula.

[0011] Furthermore, the preset particle size range is 3-10 mm.

[0012] Furthermore, the process includes the following steps: obtaining the near-field steel mill formula from the simulated production formula, wherein the near-field raw materials in the near-field steel mill formula are all simulated iron ore raw materials corresponding to the simulated production formula, excluding all raw materials corresponding to the remote port formula; obtaining the port supply raw materials of each blending port, matching the port supply raw materials with the near-field raw materials in the near-field steel mill formula, and marking the blending port that can provide the near-field raw materials as an independent supply port; and sending a task order to the pre-selected supply port to provide independent raw materials, wherein the independent raw material is a single raw material in all the near-field steel mill formulas.

[0013] Furthermore, the process also includes the following steps: obtaining the required weight of each individual raw material based on the target demand weight and the formula of nearby steel enterprises; obtaining the transportation distance of each individual raw material based on the port address of the independent supply port and the target demand address; prioritizing the independent supply ports according to the order of transportation distance from nearest to farthest, and obtaining independent waiting ports based on the corresponding supply priority; and allocating supply task orders to the independent waiting ports.

[0014] This invention also provides a port-based blending ore order allocation system, comprising: an acquisition module for acquiring the blending ore demand target of a target steel enterprise, the demand target including target demand components; a formula generation module for acquiring a simulated production formula based on the target demand components, and for determining various simulated iron ore raw materials based on the simulated production formula; a port blending yard control module for acquiring the remote port formula in the simulated production formula, wherein the raw materials in the remote port formula are simulated iron ore raw materials with a particle size within a preset particle size range and a proportion not less than a preset threshold; for acquiring the port production formula of each blending yard, matching the port production formula with the remote port formula, and marking the blending yard with the port production formula matching the remote port formula as a pre-selected supply port; and for sending a supply task order for providing semi-finished blended ore to the pre-selected supply port.

[0015] Beneficial effects:

[0016] The present invention provides a port-based method for allocating blended ore orders. This method involves setting a portion of the blending process (raw material blending in remote port formulations) at a port. It obtains the target steel enterprise's blending ore demand, which includes target required components. A simulated production formulation is then obtained based on these components. Various simulated iron ore raw materials are determined according to the simulated production formulation. Finally, the simulated production formulation is divided into remote port formulations and near-port steel enterprise formulations based on the particle size of each simulated iron ore raw material. The raw materials in the remote port formulation are simulated iron ore raw materials with a particle size within a preset range and a percentage not less than a preset threshold. All remote raw materials are blended at the port to form a semi-finished blended ore. The invention provides a port-based method for allocating blended ore orders. This method creatively proposes dividing the simulated production formula into remote port formulas and near-shore steel enterprise formulas. Each near-shore raw material in the near-shore steel enterprise formula is blended with the semi-finished ore at the target steel enterprise to ultimately form a sintered blended material. Compared to the traditional method of completely blending the sintered blended material at the target steel enterprise, this avoids the need for steel enterprises to establish large-scale dedicated blending yards (primary and secondary yards), thereby avoiding large-scale ore storage, reducing capital occupation, and minimizing yard area occupation. Attached Figure Description

[0017] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the production process of blended ore provided in an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the particle size distribution of the blended ore after mixing at the port.

[0020] Figure 3 for Figure 2 A schematic diagram of the particle size distribution of blended ore after it has been transported from the port to the steel company.

[0021] Figure 4 A schematic diagram of a port-based method for allocating blended ore orders, provided as an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the production process for remote, port-based blending of semi-finished ore;

[0023] Figure 6 for Figure 5The diagram shows the production process of semi-finished blended ore and near-field raw material mixing in the target steel enterprise. Detailed Implementation

[0024] To more clearly illustrate the blending ore production process provided in the embodiments of the present invention, the blending ore production process of the port blending yard will be explained first.

[0025] like Figure 1 As shown, the production process of blended ore is as follows:

[0026] (1) After the raw materials are transported by ocean to the port, they can be piled up at the port terminal on the one hand, and on the other hand, the raw materials can be directly allocated to the corresponding iron ore raw material batching tank.

[0027] (2) The reclaimer transports various types of raw materials from the port terminal to the corresponding pre-mixing tanks via conveyors. The raw materials for blending ore production are various types of iron ore, such as... Figure 1 As shown, there are multiple (e.g., 13) pre-mixing tanks, which means that a maximum of multiple (e.g., 13) different iron ores can be mixed.

[0028] (3) Multiple disc feeders respectively transport the corresponding raw materials in the pre-mixing trough to the metering system. During the conveying process, the multiple disc feeders simultaneously measure the amount of material being conveyed.

[0029] (4) The metering system sends the prepared raw materials to the mixing device (such as a vertical high-intensity mixer or a traditional mixer). The vertical high-intensity mixer achieves deep mixing of the raw materials by means of a high-speed rotating agitator.

[0030] (5) The well-mixed materials are transported to the port for storage or to the target user.

[0031] like Figure 1 As shown, the chemical composition and price of the various raw materials in each batching tank are known quantities. The iron content (TFe) of the blended ore exiting the vertical high-intensity mixer can be calculated using the following formula:

[0032]

[0033] Where: TFeN is the percentage of iron content in the iron ore of the Nth batching tank, and N is a positive integer less than or equal to the total number of batching tanks; GN is the batching flow rate of the iron ore in the Nth batching tank, in t / min; G is the total batching flow rate of all batching tanks, in t / min.

[0034] The SiO2 content TSi of the homogenized ore from the vertical high-intensity mixer can be calculated using the following formula:

[0035]

[0036] Where: TSiN is the percentage of SiO2 content in the iron ore of the Nth batching tank, and N is a positive integer less than or equal to the total number of batching tanks; GN is the flow rate of iron ore participating in the batching of the Nth batching tank; unit: t / min; G: total flow rate of all batching tanks, unit: t / min

[0037] The cost P of the homogenized ore from the vertical high-intensity mixer can be calculated using the following formula:

[0038]

[0039] Where: P is the unit production cost of blended ore (unit supply price), unit: yuan / t; K is a coefficient, which takes into account factors such as power consumption and mechanical depreciation in production cost. For example, K can be taken as 1.05 to 1.1; PN: the unit price of iron ore in the Nth batching tank, unit: yuan / t; GN is the batching flow rate of iron ore in the Nth batching tank, unit: t / min; G is the total batching flow rate of all batching tanks, unit: t / min.

[0040] It should be noted that steel mills have a large demand for blended ore and require stable chemical composition. During production, the formula for a specific blended ore for a particular plant will remain constant. Port blending yards can generate production formulas for different qualities and prices in real time based on the port's existing iron ore sources and reserves. The production formulas are shown in Table 1.

[0041] Table 1: Production Formula Table for Port Mixing Yard

[0042]

[0043] like Figure 1 As shown, various minerals are mixed to produce blended ore. Blending ore production is a physical mixing process. The most important control parameter in blended ore production is the stability of the flow ratio of each mineral during the production process.

[0044] As shown in Table 1, the chemical composition of the minerals involved in the blending production and the proportion of each chemical component are known. Therefore, the production formula can be generated in advance based on the composition of the blending ore. Different production formulas result in different blending ore quality and costs. Based on the historical production data of the blending yard (the operating parameters of the batching tank and high-intensity mixer of the port blending yard) or the demand for blending ore from each plant, the production formula can be derived from the blending ore production model constructed according to Formulas 1 to 3. Each port blending yard generates a production formula based on the existing raw material storage conditions. That is, each existing port production formula is an executable production formula for each port blending yard.

[0045] In order to avoid steel companies establishing large-scale dedicated blending yards (primary and secondary yards), thereby avoiding large-scale ore storage, reducing capital occupation, and reducing yard area occupation, this invention provides a port-based blending ore production method and system.

[0046] Please refer to Figure 2 and Figure 3 Research revealed that the biggest difference between producing blended ore at a dock and producing it at a steel mill is that dock production is located at a distant point, requiring the product to be transported to the steel plant. Blended ore is composed of raw materials of various origins and qualities, each naturally exhibiting particle size differences. After blending, the particle size distribution of the blended ore after uniform mixing of different particle sizes is shown in the attached figure. Figure 2 ;like Figure 2 As shown, minerals of different particle sizes are basically evenly distributed after mixing, ensuring that the chemical composition of the mixed ore remains consistent regardless of where it is taken from after entering the steel plant and fed into the sintering process. This guarantees the stability of the raw material composition during production. However, mixed ore mixed at the port will inevitably experience vibration during transportation. As the mixed ore is a bulk material, smaller particles will accumulate at the bottom of the transport container due to vibration, passing through the pores between larger particles. The particle size distribution of the finished mixed ore after long-distance transportation is shown in the attached figure. Figure 3 As shown.

[0047] like Figure 4 , Figure 5 and Figure 6 As shown, this embodiment of the invention provides a port-based method for allocating blended ore orders, including the following steps:

[0048] S10, Obtain the target demand for blended ore from the target steel enterprise. The target demand includes the target demand components.

[0049] Understandably, in this embodiment, the target demand for blended ore for each target steel enterprise is obtained. The target demand includes the target demand component, which is generated by the steel enterprise based on its own production experience and order quality. In this invention, the target demand component is a known quantity.

[0050] S20: Obtain the simulated production formula based on the target required components; S30: Determine various simulated iron ore raw materials based on the simulated production formula. Specifically, determine the target formula based on the target steel enterprise's target required components, determine the simulated production formula based on the target formula, and determine various simulated iron ore raw materials and their proportions based on the simulated production formula.

[0051] In practical applications, each target steel enterprise (blending yard) possesses its own rich batching data, i.e., the production formula for blended ore. Each blended ore has corresponding blending ratios (production formulas) for different ore types. Different steel enterprises have different requirements for the technical parameters of blended ore. For a single steel enterprise, the requirement is that the various chemical components in the blended ore be stable. However, for different steel enterprises, each enterprise has different requirements for blended ore. The sintering, blast furnace, and other processes of each steel enterprise are adapted to their respective blended ore composition requirements. Specifically, different chemical components have different effects on the operation of sintering and blast furnaces. The impact is significant, greatly affecting the costs of steel companies. High-grade, low-harmful-element blended ore is expensive, but simpler to operate in sintering and blast furnace processes; conversely, low-grade, high-harmful-element blended ore is cheaper, but more complex to operate in sintering and blast furnace processes. Each steel company is different; some are suited to high-quality ore, some to low-quality ore, and most use intermediate-quality ore. The basic requirement is stable chemical composition. Over years of production, each steel company has developed its own operating habits. Steel companies that have long used low-quality ore may experience production difficulties when switching to high-quality ore, and vice versa.

[0052] In this embodiment of the invention, the target formula can be provided in advance by the corresponding steel enterprise, or it can be obtained by simulation through a pre-established blending ore production model. Specifically, the operating parameters of the batching tank and high-intensity mixer of the port blending yard are obtained, and a blending ore production model is established according to the above formulas 1, 2 and 3. The blending production model is used to simulate the blending production that meets the required components. By simulating the production process and modifying different components, the blending ore production results can be obtained directly from the blending ore production model, thereby obtaining blending ore formulas (target formulas) of various qualities.

[0053] S40, Obtain the remote port formula in the simulated production formula. The remote raw materials in the remote port formula are simulated iron ore raw materials whose particle size is within the preset particle size range and whose proportion is not less than the preset threshold.

[0054] Understandably, the simulated production formula consists of a remote port formula and a near-port formula. The raw materials corresponding to the remote port formula are various remote raw materials, and the formula corresponding to the near-port formula is various near-port raw materials. Among them, the remote raw materials in the remote port formula are simulated iron ore raw materials whose particle size is within a preset particle size range and whose proportion is not less than a preset threshold. All the remote raw materials are mixed at the port to form a semi-finished blended ore. After the semi-finished blended ore is transported to the steel enterprise, it is mixed with various near-port raw materials to form the blended ore used by the steel enterprise.

[0055] Optionally, the upper and lower limits of the preset particle size range can be pre-set by the target steel enterprise based on its own experience or historical data, or obtained through simulation analysis, or obtained through an established transportation segregation model. In this embodiment, a transportation segregation model of semi-finished blended ore can be established using machine learning methods. Specifically, the model uses various semi-finished blended ores with different historical particle size ranges, historical transportation methods, and historical transportation mileage corresponding to historical transportation methods as input parameters, and the degree of historical transportation segregation as the output parameter.

[0056] Optionally, the preset particle size range can be 3-10 mm, 4-10 mm, 5-8 mm, or other ranges; the preset threshold can be 0.6, 0.7, 0.8, or 1. If the preset threshold is equal to 1, it means that the particle size of the remote raw material is within the preset particle size range.

[0057] S50: Obtain the port production formula of each mixing port, match the port production formula with the remote port formula, and mark the mixing port whose port production formula matches the remote port formula as the pre-selected supply port.

[0058] Understandably, different steel companies have different blending ore requirements. Port blending yards can provide a certain amount of semi-finished blended ore based on their own production capacity. Each port blending yard can provide a certain type of semi-finished blended ore, meaning there are multiple port production formulas for semi-finished blended ore. By matching the obtained port production formula with the remote port formula, the port blending yard whose port production formula matches the remote port formula is marked as a pre-selected supply port. It should be noted that the port production formula matching the remote port formula does not mean that the port production formula and the remote port formula are completely identical. Rather, it means that the semi-finished blended ore produced according to the port production formula meets the requirements of the semi-finished blended ore produced according to the remote port formula in terms of key indicators.

[0059] S60, send a supply task order to the pre-selected supply port to provide semi-finished blended ore, wherein the semi-finished blended ore is formed by blending and processing the raw materials in all remote port formulas at the corresponding pre-selected supply port.

[0060] Optionally, the demand target also includes the target demand weight; the port-based blending ore order allocation method further includes the step of: obtaining the semi-finished product demand weight of the semi-finished product blending ore based on the target demand weight and the remote port formula.

[0061] Optionally, in this embodiment, the pre-selected supply ports can be prioritized according to the supply price of each pre-selected supply port from low to high, and each pre-selected supply port can be obtained according to the corresponding supply priority; alternatively, the pre-selected supply ports can be prioritized according to the supply transportation time of each pre-selected supply port from short to long, and each pre-selected supply port can be obtained according to the corresponding supply priority.

[0062] In a specific implementation of this invention, the supply capacity of each pre-selected supply port for the target steel enterprise is obtained; step S60 specifically includes: according to the semi-finished product demand weight and the supply capacity of the pre-selected supply ports corresponding to the supply priority, the target demand weight is divided into a combination order completed by multiple pre-selected supply ports, the combination order includes multiple supply task orders; and the supply task orders are sent to the corresponding pre-selected supply ports.

[0063] The present invention provides a port-based method for allocating blended ore orders. This method involves setting a portion of the blending process (raw material blending in remote port formulations) at a port. It obtains the target steel enterprise's blending ore demand, which includes target required components. A simulated production formulation is then obtained based on these components. Various simulated iron ore raw materials are determined according to the simulated production formulation. Finally, the simulated production formulation is divided into remote port formulations and near-port steel enterprise formulations based on the particle size of each simulated iron ore raw material. The raw materials in the remote port formulation are simulated iron ore raw materials with a particle size within a preset range and a percentage not less than a preset threshold. All remote raw materials are blended at the port to form a semi-finished blended ore. The invention provides a port-based method for allocating blended ore orders. This method creatively proposes dividing the simulated production formula into remote port formulas and near-shore steel enterprise formulas. Each near-shore raw material in the near-shore steel enterprise formula is blended with the semi-finished ore at the target steel enterprise to ultimately form a sintered blended material. Compared to the traditional method of completely blending the sintered blended material at the target steel enterprise, this avoids the need for steel enterprises to establish large-scale dedicated blending yards (primary and secondary yards), thereby avoiding large-scale ore storage, reducing capital occupation, and minimizing yard area occupation.

[0064] Furthermore, it also includes the step of: obtaining the number of remote premix tanks for each preselected feed port;

[0065] Determine whether the types and quantities of remote raw materials in the remote port formula are greater than the number of remote premix tanks;

[0066] If the number of remote raw materials in the remote port formula exceeds the number of remote premix tanks, a preset threshold is amplified and the remote raw materials in the remote port formula are updated, thereby re-acquiring various remote raw materials. In this embodiment, the number of remote premix tanks located at the pre-selected supply port is fully considered to avoid the technical problem of difficulty in mixing due to the total number of all remote raw materials corresponding to the remote port formula exceeding the number of remote premix tanks. Specifically, if the preset particle size range is 3-10 mm and the preset threshold is 0.6, and if the raw materials in the remote port formula are simulated iron ore raw materials with a particle size range of 3-10 mm and a proportion of not less than 0.6, including raw material 1, raw material 2, raw material 3, raw material 4, raw material 5, raw material 6, raw material 7, and raw material 8, totaling eight raw materials, and the number of remote premixing tanks at the preselected supply port is seven, then the preset threshold can be adjusted from 0.6 to 0.7, and the raw materials in the remote port formula can be recalculated to be simulated iron ore raw materials with a particle size range of 3-10 mm and a proportion of not less than 0.7, including raw material 1, raw material 2, raw material 3, raw material 4, raw material 5, and raw material 6, totaling six raw materials. At this time, the six raw materials can be mixed in the remote premixing tanks at the preselected supply port to form a semi-finished blended ore.

[0067] Furthermore, the demand target also includes the target demand address; it also includes the following steps: obtaining the transportation route based on the port address of the pre-selected supply port and the target demand address; predicting the estimated transportation environment within the transportation route during the transportation period; if the estimated transportation environment is a poor environment, then narrowing the range of the preset particle size and updating the remote raw materials in the remote port formula. In this embodiment, predicting the estimated transportation environment within the transportation time limit, if the estimated transportation environment is poor, narrowing the range of the preset particle size and updating the raw materials in the remote port formula, thereby reducing the particle size segregation of the semi-finished blended ore during transportation, which is beneficial to ensuring the quality of the semi-finished blended ore after it arrives at the steel enterprise. Understandably, the transportation environment within the transportation time limit is first predicted. If there is little vibration and bumps and the transportation journey is short within the transportation time limit, the transportation environment is estimated to be normal, and the preset particle size range can be set to 3-10 mm. If the transportation environment within the transportation time limit is poor, with great vibration and bumps and a long transportation journey, the preset particle size range is reduced (for example, 3-10 mm is reduced to 4-10 mm), and the remote raw materials in the remote port formula are updated.

[0068] Further, the method includes the following steps: S71, obtaining the near-field steel enterprise formula from the simulated production formula, wherein the near-field raw materials in the near-field steel enterprise formula are all simulated iron ore raw materials corresponding to the simulated production formula, excluding all raw materials corresponding to the remote port formula; S72, obtaining the port supply raw materials of each blending port, matching the port supply raw materials with the near-field raw materials in the near-field steel enterprise formula, and marking the blending port that can provide the near-field raw materials as an independent supply port; S73, sending a task order to the pre-selected supply port to provide independent raw materials, wherein the independent raw material is a single raw material in all the near-field steel enterprise formulas. In this invention, semi-finished blended ore is manufactured at the pre-selected supply port and transported to the target steel enterprise, independent raw materials are provided at the independent supply port and transported to the target steel enterprise, and then the semi-finished blended ore and all independent raw materials are blended at the target steel enterprise.

[0069] Furthermore, the process also includes the following steps: obtaining the required weight of each individual raw material based on the target demand weight and the formula of nearby steel enterprises; obtaining the transportation distance of each individual raw material based on the port address of the independent supply port and the target demand address; prioritizing the independent supply ports according to the order of transportation distance from nearest to farthest, and obtaining independent waiting ports based on the corresponding supply priority; and allocating supply task orders to the independent waiting ports.

[0070] Please refer to Figure 3 , Figure 4 as well as Figure 5 The present invention provides a specific implementation method as follows:

[0071] Obtain the target blended ore demand of the target steel enterprise, including the target demand composition, target demand weight, and target demand location;

[0072] Obtain the simulated production formula based on the target required components; determine various simulated iron ore raw materials based on the simulated production formula; obtain the semi-finished product required weight of the semi-finished product mixture based on the target required weight and the remote port formula;

[0073] S40, obtain the remote port formula in the simulated production formula. The remote raw materials in the remote port formula are simulated iron ore raw materials whose particle size is within the preset particle size range and whose proportion is not less than the preset threshold.

[0074] Obtain the transportation route based on the port address of the backup supply port and the target demand address; estimate the transportation environment during the transportation period based on the transportation route; if the estimated transportation environment is a poor environment, reduce the range value of the preset particle size range, update the raw materials in the remote port formula, and proceed to step S40.

[0075] Obtain the number of remote premix tanks for each preselected feeding port; determine whether the number of types of raw materials in the remote port formula is greater than the number of remote premix tanks; if the number of types of raw materials in the remote port formula is greater than the number of remote premix tanks, increase the preset threshold and update the raw materials in the remote port formula, and proceed to step S40.

[0076] Obtain the port production formula of each mixing port, match the port production formula with the remote port formula, and mark the mixing port whose port production formula matches the remote port formula as the pre-selected supply port.

[0077] Send a supply order for semi-finished blended ore to the pre-selected supply port. The semi-finished blended ore is formed by blending and processing the raw materials in all remote port formulas at the corresponding pre-selected supply port.

[0078] This invention also provides a port-based blending ore order allocation system, comprising: an acquisition module for acquiring the blending ore demand target of a target steel enterprise, the demand target including target demand components; a formula generation module for acquiring a simulated production formula based on the target demand components, and for determining various simulated iron ore raw materials based on the simulated production formula; a port blending yard control module for acquiring the remote port formula in the simulated production formula, wherein the raw materials in the remote port formula are simulated iron ore raw materials with a particle size within a preset particle size range and a proportion not less than a preset threshold; for acquiring the port production formula of each blending yard, matching the port production formula with the remote port formula, and marking the blending yard with the port production formula matching the remote port formula as a pre-selected supply port; and for sending a supply task order for providing semi-finished blended ore to the pre-selected supply port.

[0079] The present invention has been described in detail above with reference to specific embodiments and exemplary examples; however, these descriptions should not be construed as limiting the present invention. Those skilled in the art will understand that various equivalent substitutions, modifications, or improvements can be made to the technical solutions and embodiments of the present invention without departing from the spirit and scope of the invention, and all such modifications and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A port-based method for allocating blended ore orders, characterized in that, Includes the following steps: Obtain the target demand for blended ore from the target steel enterprise, wherein the target demand includes the target demand components; A simulated production formula was obtained based on the target required components; Various simulated iron ore raw materials are determined based on the simulated production formula; Obtain the remote port formula in the simulated production formula, wherein the remote raw material in the remote port formula is the simulated iron ore raw material whose particle size is within a preset particle size range and whose proportion is not less than a preset threshold. Obtain the port production formula of each mixing port, match the port production formula with the remote port formula, and mark the mixing port whose port production formula matches the remote port formula as a pre-selected feeding port. Send a supply task order to the pre-selected supply port to provide semi-finished blended ore, wherein the semi-finished blended ore is formed by blending and processing all the raw materials in the remote port formula at the corresponding pre-selected supply port. It also includes the following steps: Obtain the near-field steel enterprise formula from the simulated production formula. The near-field raw materials in the near-field steel enterprise formula are all the simulated iron ore raw materials corresponding to the simulated production formula, excluding all the raw materials corresponding to the remote port formula. Obtain the port supply raw materials of each blending port, match the port supply raw materials with the short-distance raw materials in the short-distance steel enterprise formula, and mark the blending port that can provide the short-distance raw materials as an independent supply port. Send a task order to the pre-selected supply port to provide independent raw materials, wherein the independent raw materials are a single raw material in all the nearby steel enterprise formulas; The simulated production formula is divided into remote port formula and near steel enterprise formula. Each type of near steel enterprise formula is mixed with the target steel enterprise and semi-finished ore to form a sintered blend.

2. The port-based method for allocating blended ore orders according to claim 1, characterized in that, The demand target also includes the target demand weight; The port-based blending ore order allocation method further includes the step of: obtaining the semi-finished product demand weight of the semi-finished product blending ore based on the target demand weight and the remote port formula.

3. The port-based method for allocating blended ore orders according to claim 2, characterized in that, The port-based method for allocating blended ore orders further includes the following steps: Obtain the number of remote premix tanks for each of the preselected feed ports; Determine whether the types and quantities of remote raw materials in the remote port formula are greater than the number of remote premix tanks; If the number of remote raw materials in the remote port formula is greater than the number of remote premix tanks, then the preset threshold is increased and the remote raw materials in the remote port formula are updated.

4. The port-based method for allocating blended ore orders according to claim 1, characterized in that, The target demand also includes the target demand address; The port-based method for allocating blended ore orders further includes the following steps: The transportation route is obtained based on the port address of the pre-selected supply port and the target demand address; Predict the estimated transportation environment along the transportation route during the transportation period; If the estimated transportation environment is a poor environment, then the range value of the preset particle size range is reduced, and the remote raw materials in the remote port formula are updated.

5. The port-based method for allocating blended ore orders according to claim 1, characterized in that, The preset particle size range is 3-10 mm.

6. The port-based method for allocating blended ore orders according to claim 1, characterized in that, It also includes the step of: obtaining the single-item raw material requirement weight for each of the independent raw materials based on the target required weight and the near-field steel enterprise formula; The single-item transportation distance for the required weight of each of the single raw materials is obtained based on the port address of the independent supply port and the target demand address. The independent supply ports are prioritized according to the order of the transport distance of the individual items from near to far, and independent supply ports are obtained according to the corresponding supply priorities. Assign supply orders to the independent ports awaiting supply.

7. A port-based order allocation system for blended ore, characterized in that, The order allocation method according to any one of claims 1-6 includes: The acquisition module is used to acquire the target demand for blended ore of the target steel enterprise, wherein the target demand includes the target demand components. The formula generation module is used to obtain a simulated production formula based on the target required components, and to determine various simulated iron ore raw materials based on the simulated production formula. The port blending yard control module is used to acquire the remote port formula in the simulated production formula, wherein the raw material in the remote port formula is the simulated iron ore raw material with a particle size within a preset particle size range and a proportion not less than a preset threshold; it is used to acquire the port production formula of each blending port, match the port production formula with the remote port formula, and mark the blending port whose port production formula matches the remote port formula as a pre-selected supply port; and it is used to send a supply task order to the pre-selected supply port to provide semi-finished blended ore.

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