WO2024041430A1

WO2024041430A1 - Port blended ore feeding method and system based on estimated quality

Info

Publication number: WO2024041430A1
Application number: PCT/CN2023/113307
Authority: WO
Inventors: 刘雁飞
Original assignee: 中冶长天国际工程有限责任公司; 湖南中冶长天节能环保技术有限公司
Priority date: 2022-08-26
Filing date: 2023-08-16
Publication date: 2024-02-29
Also published as: CN117689286A

Abstract

Provided in the present invention are a port blended ore feeding method and system based on estimated quality. The method comprises: acquiring pre-selected feeding ports with water transport durations not greater than a first threshold value, and taking the pre-selected feeding ports as standby feeding ports, which involves firstly removing port blended ore which greatly affects the quality of finished blended ore in a water transport means, so as to obtain the standby feeding ports; then, after the standby feeding ports are acquired, acquiring a land transport segregation index of each standby feeding port feeding a target steel enterprise; then, comparing land transport segregation indexes of the standby feeding ports for feeding the target steel enterprise, such that the target steel enterprise selects, from among the standby feeding ports, a standby feeding port with a land transport segregation index meeting a preset transport segregation value, and takes the standby feeding port as a target feeding port; and finally, feeding the target steel enterprise by means of the target feeding port. By means of the method, the quality of finished blended ore which is blended at a port and is transported to a target steel enterprise is ensured, a sintering effect is thus ensured, and moreover, the secondary cost of the steel enterprise is reduced.

Description

A port mixed ore feeding method and system based on estimated quality

Technical field

This application relates to the field of sintering technology, and in particular to a port mixed ore feeding method and system based on estimated quality.

Background technique

In the field of steel sintering technology, the chemical composition of the iron-containing raw materials entering the sintering process (mainly various iron ores, or other iron-containing raw materials) is stable (the main assessment is the segregation degree of SiO ₂ and TFe), which is beneficial to the stable and smooth production of sintering. , cost reduction and efficiency increase play a huge role. In actual production, in order to ensure the stability of the chemical composition of iron ore in the sintering process, companies will establish their own mixing yards. The mixing yards will evenly mix iron-containing raw materials from different origins to produce stable chemical compositions. Mixed ore is used as iron-containing raw material for sintering production (mixed ore).

In the existing production of iron-containing raw materials, the sintering mixing yard generally adopts the secondary mixing process. Steel companies need to set up a primary feeding yard and a secondary feeding yard. The mixing process is: (1) Each iron-containing raw material entering the factory is Stacked to the primary material yard; (2) Each iron-containing raw material is transported to the pre-batching tank through a small belt for use; (3) The stacker/reclaimer puts various iron-containing raw materials from the pre-batching tank on the first floor of the secondary material yard The layers are stacked flatly to the set height; (4) The stacker/reclaimer will transport the stacked and mixed mixture to the sintering process in an interceptive manner. The stock of materials in the secondary material yard generally meets the production needs of steel companies for 6 to 7 days. The material yard occupies a large area (the primary material yard of a certain factory occupies an area of 500m×250m, and the secondary material yard occupies an area of 500m×100m). This kind of Iron and steel companies themselves adopt a secondary mixing process, which requires high investment and complex equipment. In steel production, the operating rates of sintering and blast furnaces are both above 0.9, and the operating rates of primary and secondary stockyards are generally around 0.7. The equipment capacity of primary and secondary stockyards has not been fully utilized.

Moreover, the steel companies themselves use the secondary mixing process, which still has the following shortcomings: (1) The material pile in the secondary material yard is more than ten meters high. Due to open-air operations, material collapse often occurs in the rainy season, and the mixing and stacking machines are The mixing and reclaiming machine is a large-scale material yard equipment. The cost of daily maintenance and overhaul is high, the environment is harsh, and the maintenance is difficult; (2) In the flat interception process, the secondary material yard has a mixed ore pile of nearly 100,000 tons, and the production The cycle is seven or eight days long; (3) the production cycle is long, the traceability of the chemical composition of the mixture is poor, and it is difficult to wait for silicon operations during the cycle; (4) when transporting the finished mixed ore, the quality cannot be guaranteed to meet the requirements of the steel companies.

In addition, because the mixed ore is a mixture of different minerals with different particle sizes, the finished mixed ore mixed at the port is subject to irresistible factors during transportation, which will cause the fine particles in the mixed ore to pass through the mixer. The pores in the ore sink to the bottom of the transportation container and are enriched, thereby affecting the quality of the mixed ore, resulting in poor quality of the mixed ore after arriving at the steel company, affecting sintering.

In view of this, it is necessary to provide a port mixed ore feeding method based on estimated quality to solve at least some of the above technical problems.

Contents of the invention

In order to provide steel companies with finished mixed ore that meets the quality requirements of steel companies without each steel company establishing its own dedicated mixing yard (primary stocking yard and secondary stocking yard), this application provides a method based on predetermined mixing. Methods and systems for port mixed ore supply to estimate quality.

The first aspect of this application provides a port mixed ore feeding method based on estimated quality, including:

S10, obtain the mixed ore demand target of the target steel enterprise, and the demand target includes the target demand address; S20, obtain the port address of each pre-selected supply port, and determine the distance between the port address and the target demand address based on the port address and the target demand address. Simulated material supply information, where the simulated material supply information includes water transportation mode and the water transportation time corresponding to the water transportation mode, land transportation mode and the land transportation time corresponding to the land transportation mode. The land transportation mode includes flat transportation mode and bumpy transportation mode, and the land transportation time Including flat transportation time and bumpy transportation time; S30, obtain the pre-selected supply port whose water transportation time is not greater than the first threshold as the alternate supply port; S40, obtain the land transportation segregation index of each alternate supply port that supplies materials to the target steel company, The land transportation segregation index is obtained from the formula PI=FI×TF+BI×TB, where FI represents the road condition impact coefficient when the I-th backup supply port supplies materials to the target port in a flat transportation mode, and TF represents the I-th backup supply port. The transportation time when the material port is supplying material to the target port is in a flat transportation mode. BI represents the road condition impact coefficient when the I-th backup supply port is supplying materials to the target port and is in a bumpy transportation mode. TB represents the I-th backup supply port. The transportation time when the port is in bumpy transportation mode when supplying materials to the target port, and the value of FI is less than BI; S50 is used to sort the alternative supply ports according to the land transportation segregation index corresponding to the alternative supply port, and obtain the candidate port Name; select the first to Nth backup supply port from the port names to be selected as the target supply port, and obtain the target port name; N is a positive integer, and 1≤N≤the number of backup supply ports.

In one implementation method, the port mixed ore feeding method based on estimated quality also includes the steps of: estimating the wind level during the water transportation period when the pre-selected supply port supplies materials to the target steel enterprise; if the wind level is greater than the wind level, threshold, then narrow the range of the first threshold.

In one implementation, the road condition influence coefficient FI of the flat transportation mode ranges from 0.01 to 0.04; the road condition influence coefficient BI of the bumpy transportation mode ranges from 0.05 to 0.08.

In an implementation manner, the steps are also included: the demand target also includes the target demand weight; obtaining the supply capacity of the target supply port; and prioritizing the supply of the target supply port according to the level of the supply capacity of the target supply port. Sorting, according to the target demand weight and the supply capacity of the target supply port corresponding to the supply priority, the target demand weight is split into a combined order completed by multiple target supply ports. The combined order includes multiple supplies. Task order; send the supply task order to the corresponding target supply port.

In one implementation, steps are also included: S61, obtain the current production status of the target supply port with the supply task order; S62, if the current production status of the target supply port with the supply task order is an abnormal state, Obtain the backup supply port corresponding to the abnormal state as the abnormal supply port; S63, obtain the undersupply weight of the abnormal supply port that has not completed the supply; S64, update the undersupply weight to the target demand weight, and enter step S10.

In one implementation, the first threshold range is no greater than 15 days.

The second aspect of the embodiment of this application provides a port mixed ore feeding system based on estimated quality.

Demand acquisition module: used to obtain the mixed ore demand target of the target steel enterprise. The demand target includes the target demand address;

Port acquisition module: used to obtain the port address of each pre-selected supply port, and determine the simulated supply information between the port address and the target demand address based on the port address and the target demand address. The simulated supply information includes water transportation mode and The water transportation time corresponding to the water transportation mode, the land transportation mode and the land transportation time corresponding to the land transportation mode. The land transportation mode includes flat transportation mode and bumpy transportation mode. The land transportation time includes flat transportation time and bumpy transportation time; used to obtain the water transportation time is not greater than The preselected supply port of the first threshold is the backup supply port; it is used to obtain the land transportation segregation index of each backup supply port that supplies materials to the target steel company. The land transportation segregation index is obtained by the formula PI=FI×TF+BI×TB, Among them, FI represents the road condition impact coefficient when the I-th backup supply port supplies materials to the target port and is in the flat transportation mode, and TF represents the transportation time when the I-th backup supply port supplies materials to the target port and is in the flat transportation mode. , BI represents the road condition impact coefficient when the I-th backup supply port supplies materials to the target port and is in bumpy transportation mode, TB represents the transportation time when the I-th backup supply port supplies materials to the target port and is in bumpy transportation mode, The value of FI is less than BI; used to sort the alternative supply ports according to the land transportation segregation index corresponding to the alternative supply ports, and obtain the candidate port names; select the first to Nth alternative supply ports from the candidate port names The material port is used as the target supply port to obtain the target port name; N is a positive integer, and 1≤N≤the number of spare supply ports.

Beneficial effects:

The port mixed ore supply method based on estimated quality provided by this application will be used to obtain the mixed ore demand target of the target steel company through the demand acquisition module. The demand target includes the target demand address, and then based on the port address and target The demand address determines the simulated transportation mode between the port address and the target demand address and the simulated transportation time corresponding to each simulated transportation mode. Finally, the influence coefficient of each simulated transportation mode on the quality of the mixed ore is analyzed, so as to obtain the results from each port. Select the port mixing yard that can provide the best quality mix. By setting it up in this way, each steel company can meet the quality requirements without having to establish its own dedicated mixing yard. Mixing; by obtaining the pre-selected supply ports whose water transportation time is not greater than the first threshold as the backup supply ports, first eliminate the port mixing ores that have a great impact on the quality of the finished product mix ore in the water transportation mode, and then obtain the backup supply ports ; After obtaining the backup supply port, obtain the land transportation segregation index of each backup supply port for supplying materials to the target steel company, and then compare the land transportation segregation index of each backup supply port when supplying materials to the target steel company, thus facilitating The target steel company selects the backup supply port whose land transport segregation index meets the preset transportation segregation value from the backup supply ports as the target supply port, and finally supplies the target steel company with materials through the target supply port, which is conducive to ensuring uniform mixing at the port. The quality of the mixed ore in the finished product after arriving at the target steel company is guaranteed to ensure the sintering effect. At the same time, the secondary cost of the steel company is reduced based on the port supply of ore.

Description of drawings

In order to explain the technical solutions of the present application more clearly, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, without exerting creative efforts, Additional drawings can be obtained from these drawings.

Figure 1 is a schematic flow diagram of the mixed ore production process provided by the embodiment of the present application;

Figure 2 is a schematic flow chart of a port mixed ore feeding method based on estimated quality provided by the embodiment of the present application;

Figure 3 is a system schematic diagram of the port mixed ore feeding method based on estimated quality provided by the embodiment of the present application.

Detailed ways

In order to more clearly introduce the production process of the mixed ore provided by the embodiment of the present application, the necessary explanation of the production process of the mixed ore in the port mixing yard is first provided.

As shown in Figure 1, the production process of mixed ore is as follows:

(1) After the ocean-going raw materials enter the port, on the one hand, the iron-containing raw materials can be stacked at the port terminal, and on the other hand, the raw materials can also be directly transferred to the corresponding iron ore raw material batching tanks.

(2) The reclaimer transports multiple types of raw materials from the port terminal to the corresponding pre-batching tank through the conveyor. The raw materials produced by the mixed ore are various different iron ores. As shown in Figure 1, there are multiple ( Such as 13) pre-batching tanks, which means that up to a variety of (such as 13) different iron ores can be mixed.

(3) Multiple disc feeders deliver the corresponding raw materials in the pre-dosing tank to the metering system respectively. During the transportation process, multiple disc feeders measure the amount of fed materials delivered at the same time.

(4) The metering system sends the prepared raw materials to the mixing device (such as a vertical intensive mixer or a traditional mixer). The vertical intensive mixer uses a high-speed rotating stirring paddle to achieve deep mixing of the raw materials.

(5) The mixed materials are sent to the port for storage or to the target user through the transportation link.

As shown in Figure 1, the chemical composition and price of various raw materials in each batching tank are known quantities.

The iron content TFe of the mixed ore coming out of the vertical intensive mixer can be calculated according to the following formula:

………………………Formula 1;

Among them: TFeN is the iron content percentage of the iron ore in the Nth batching tank, 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, The unit is t/min; G is the total ore blending flow rate of the entire batching tank, the unit is t/min.

The SiO ₂ content TSi of the mixed ore coming out of the vertical intensive mixer can be calculated according to the following formula:

…………… Formula 2;

Among them: TSiN is the SiO ₂ content percentage of the iron ore in the Nth batching tank, 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; Unit t/min; G: total ore blending flow rate of all batching tanks, unit t/min.

The cost P of the mixed ore coming out of the vertical intensive mixer can be calculated according to the following formula:

…………… Formula 3;

Among them: P is the unit production cost of mixed ore (unit supply price), unit: yuan/t; K is the coefficient, considering the production cost of power consumption, mechanical depreciation and other factors, for example, K can be 1.05 to 1.1; PN: Nth The unit price of iron ore in a batching tank, unit: yuan/t; GN is the ore blending flow rate of 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.

It should be noted that steel companies have a large demand for mixed ore, and their chemical composition requirements are stable; during the production process, when producing the corresponding mixed ore of a certain factory, its formula will be stable; port mixing The screed yard can generate production recipes corresponding to different qualities and prices in real time based on the existing sources and reserves of iron ore in the port. The production formula is shown in Table 1:

Table 1: Production formula table of port mixing yard

As shown in Figure 1, various mineral types are mixed to produce mixed ore. Mixed ore production is a physical mixing process. In the mixed ore production process, the most important control parameter is the flow rate of each mineral type during the production process. The ratio is stable.

As shown in Table 1, the chemical composition of the minerals involved in the production of mixed ore and the proportion of each chemical component are known, so that the production formula can be generated in advance. The quality and cost of the mixed ore are different for different production formulas. Based on the historical production data of the mixing yard (the operating parameters of the batching tank and the powerful mixer in the port mixing yard) or the needs of each plant for the mixing ore, the mixing ore production model is constructed based on Formulas 1 to 3, The production formula is deduced in the mixed ore production model, and each port's mixing yard generates a production formula based on the existing raw material storage conditions. That is, the production formula of each existing port is the production formula that can be executed by each port's mixing yard.

In order to provide steel companies with a port for mixing ore that meets the quality requirements of steel companies without each steel company establishing its own dedicated mixing yard (primary stockyard and secondary stockyard), this application provides a method based on Method and system for port mixed ore supply with estimated quality.

As shown in Figure 2, the embodiment of the present application provides a port mixed ore feeding method based on estimated quality, including the steps:

S10: Obtain the mixed ore demand target of the target steel enterprise. The demand target includes the target demand address. Specifically, the target demand address is the current address of the target steel enterprise.

S20: Obtain the port address of each pre-selected supply port, and determine the simulated supply information between the port address and the target demand address based on the port address and the target demand address. The simulated supply information includes the water transportation mode and the corresponding water transportation mode. The water transportation time, land transportation mode and land transportation time corresponding to the land transportation mode. The land transportation mode includes flat transportation mode and bumpy transportation mode. The land transportation time includes flat transportation time and bumpy transportation time.

In the embodiment of this application, each supply port has a corresponding port address. According to the port address and the target demand address, the water transportation mode between the port address and the target demand address is determined, as well as the water transportation time and land transportation corresponding to the water transportation mode. The mode of transportation and the land transportation time corresponding to the land transportation mode, and the land transportation mode includes flat transportation mode and bumpy transportation mode, and the land transportation time includes flat transportation time and bumpy transportation time. Specifically, flat transportation methods include railway transportation and high-grade highway transportation, and bumpy transportation methods include medium-grade highways, low-grade highways, and village and town roads. The port address and the target demand address of the target steel company are combined with big data, artificial intelligence, or worker experience. It is possible to estimate the simulated water transport mode and the water transport time corresponding to the water transport mode, the land transport mode and the land transport time corresponding to the land transport mode; by simulating the water transport mode and the water transport time corresponding to the water transport mode, the land transport mode and the land transport mode. The corresponding land transportation time is estimated to be the quality of the mixed ore after being transported through a simulated water transportation method or a land transportation method, or a combination of water transportation and land transportation, which can help the target steel company choose the optimal supply port. It is helpful to ensure the quality of the finished mixed ore after being mixed at the port and transported to the target steel company.

S30: Obtain the pre-selected supply port whose water transportation time is not greater than the first threshold as the backup supply port.

Understandably, the transportation time by water transportation mode is extracted from the preselected supply ports that meet the requirements of water transportation. Specifically, if the transportation time of the simulated water transportation mode is not greater than the preset first threshold, then Set the preselected feed port that meets this condition as an alternate feed port. For example, there are 20 pre-selected supply ports, among which the preset first threshold is 30 days. Among these 20 pre-selected supply ports, 15 have a water transportation time of 25 days, and 5 have a water transportation time of 25 days. 40 days, so there are 15 pre-selected supply ports that meet the water transportation duration of no more than 30 days, then the 15 pre-selected supply ports will be set as backup supply ports.

S40, obtain the land transportation segregation index of each alternate supply port that supplies materials to the target steel company. The land transportation segregation index is obtained by the formula PI=FI×TF+BI×TB, where FI indicates that the Ith alternate supply port is the target port. The road condition influence coefficient when supplying materials is in the flat transportation mode. TF represents the transportation time when the I-th alternate supply port supplies materials to the target port and is in the flat transportation mode. BI represents the I-th alternate supply port supplying materials to the target port. The road condition influence coefficient when the material is in the bumpy transportation mode, TB represents the transportation time when the I-th backup supply port supplies materials to the target port and is in the bumpy transportation mode, and the value of FI is smaller than BI.

Understandably, since the land transportation segregation index is affected by the transportation road conditions and the transportation time corresponding to the transportation road conditions, the land transportation segregation index can be calculated through the formula PI=FI×TF+BI×TB. It should be noted that if the land transportation segregation index is not less than 10, it is judged that the land transportation segregation index is high. If the land transportation segregation index is less than 10, it is judged that the land transportation segregation index is low. And through experimental research, it is found that the influence coefficient of flat road conditions is smaller than the influence coefficient of bumpy road conditions; for example, the influence coefficient of flat road conditions is 0.02, which is in the level of flat transportation. The corresponding transportation time on flat road conditions in the environment is 100 hours, and the impact coefficient of bumpy road conditions is 0.06. The transportation time on bumpy road conditions in a bumpy transportation environment is 150 hours, then the land transportation segregation index at this time is 11; or, the impact coefficient of flat road conditions is 0.02, the transportation time on flat road conditions in a flat transportation environment is 150 hours, the impact coefficient of bumpy road conditions is 0.05, and the transportation time on bumpy road conditions in a bumpy transportation environment is 100 hours, then the land transportation segregation index at this time is 8.

S50: Sort the alternative supply ports according to the land transportation segregation index corresponding to the alternative supply ports, and obtain the candidate port names; select the first to Nth alternative supply ports from the candidate port names as the target supply Port, get the target port name; N is a positive integer, and 1≤N≤the number of backup supply ports.

It can be understood that in the actual application process, if water transportation combined with land transportation is used, the alternate supply ports will be sorted according to the land transportation segregation index corresponding to the alternate supply ports, and the name of the candidate supply port will be obtained; from Select the first to Nth backup supply port from the supply port name as the target supply port to obtain the target supply port name; N is a positive integer, and 1≤N≤the number of backup supply ports, at this time The backup supply ports are the backup supply ports extracted through water transportation; for example, in step S30, 50 backup supply ports are extracted through water transportation, and then based on the corresponding 50 backup supply ports The 50 alternative supply ports are sorted according to the level of the land transport segregation index, and a list of candidate ports from alternative supply port 1 to alternative supply port 50 is obtained, and then the first to 20th alternative supply ports are selected as targets. Supply port, get the list of target supply ports from backup supply port 1 to backup supply port 20; you can also filter the list of target supply ports from the list of candidate supply ports based on the percentage, for example, if there is a backup supply port The list of candidate supply ports from 1 to 100 alternate supply ports. If N is 30%, the first 30 candidate supply ports will be selected from the list of candidate supply ports as the target supply ports.

Furthermore, the port mixed ore supply method based on estimated quality also includes the following steps: estimate the wind level during the water transportation period when the pre-selected supply port supplies materials to the target steel enterprise; if the wind level is greater than the wind threshold, then reduce the The range of the first threshold.

Understandably, if water transportation is adopted, but since water transportation is greatly affected by wind, it is necessary to estimate the wind level during the water transportation period when the pre-selected supply port supplies materials to the target steel company. If the wind level is greater than ideal To determine the wind threshold, the range of the first threshold needs to be narrowed; for example, it is estimated that the wind level during the water transportation period when the pre-selected supply port supplies materials to the target steel company is level 6, while the ideal wind threshold is level 3. At this time, Then the range of the original first threshold needs to be narrowed.

Further, the road condition influence coefficient FI of the flat transportation mode ranges from 0.01 to 0.04; the road condition influence coefficient BI of the bumpy transportation mode ranges from 0.05 to 0.08.

Understandably, through research, it is found that when the range of the road condition influence coefficient FI of the flat transport mode is 0.01 to 0.04 and the range of the road condition influence coefficient BI of the bumpy transport mode is 0.05 to 0.08, the impact on the land transport segregation index is controllable of. If the minimum curve radius of the curve during railway transportation in the flat transportation mode is greater than the preset minimum curve radius, the road condition influence coefficient of railway transportation shall be 0.04; the minimum curve radius of the curve during railway transportation shall not be greater than the preset minimum curve radius, the road condition influence coefficient of railway transportation is 0.01; if the minimum curve radius of the curve during high-grade highway transportation in flat transportation is greater than the preset minimum curve radius, the road condition influence coefficient of high-grade highway transportation is 0.04 ; The minimum curve radius of the curve during high-grade highway transportation is not greater than the preset minimum curve radius, then the road condition influence coefficient of high-grade highway transportation is 0.01.

Optionally, if the minimum curve radius of the curve during medium-grade highway transportation in the bumpy transportation mode is greater than the preset minimum curve radius, the road condition influence coefficient of medium-grade highway transportation shall be 0.08; the curve during medium-grade highway transportation If the minimum curve radius is not greater than the preset minimum curve radius, the road condition impact coefficient for medium-grade highway transportation is 0.05; if the minimum curve radius of the curve during low-grade highway transportation in the bumpy transportation mode is greater than the preset minimum curve radius, Then the road condition influence coefficient of low-grade highway transportation is 0.08; if the minimum curve radius of curves in low-grade highway transportation is not greater than the preset minimum curve radius, then the road condition influence coefficient of low-grade highway transportation is 0.05; if the bumpy transportation mode If the minimum curve radius of the curve during village and town highway transportation is greater than the preset minimum curve radius, the road condition influence coefficient of village and town highway transportation is 0.08; the minimum curve radius of the curve during village and town highway transportation is not greater than the preset minimum curve radius. , then the road condition influence coefficient of village and town highway transportation takes a value of 0.05.

Furthermore, the demand target also includes the target demand weight; obtaining the supply capacity of the target supply port; prioritizing the supply of the target supply port according to the supply capacity of the target supply port, and based on the target demand weight and basis The supply capacity of the target supply port corresponding to the supply priority divides the target demand weight into a combination order completed by multiple target supply ports. The combination order includes multiple supply task orders; the supply task order Send to the corresponding target supply port.

In actual production, the supply capacity of the target supply port may not meet the demand weight of the mixed ore required by a single steel enterprise. The supply capacity of the target supply port can be determined based on the target demand weight and the supply priority. Production capacity, split the target demand weight into a combination order completed by a combination of multiple target supply ports. The combination order contains multiple supply task orders, and each supply task order corresponds to a target supply port, for example, A Steel The enterprise needs 1 million tons. According to the priority of the supply capacity, there are target supply port 1, target supply port 2, target supply port 3, target supply port 4, and target supply port N. The target supply port The production capacity of port 1 is 600,000 tons, the production capacity of target supply port 2 is 300,000 tons, the production capacity of target supply port 3 is 200,000 tons, and the production capacity of target supply port n is tens of thousands of tons. It is planned that the target supply port Material port 1 supplies 600,000 tons of material, target supply port 2 supplies 300,000 tons of material, and target supply port 3 supplies 100,000 tons of material, and this supply task order is assigned to target supply port 1 , target supply port 2 and target supply port 3, the target demand weight of steel enterprise A is completed by the combination of target supply port 1, target supply port 2 and target supply port 3.

Further, S61, obtain the current production status of the target supply port with the supply task order; S62, if the current production status of the target supply port with the supply task order is an abnormal state, obtain the backup supply corresponding to the abnormal state. The port is an abnormal supply port; S63, obtain the undersupply weight of the abnormal supply port that has not yet completed the supply; S64, update the undersupply weight to the target demand weight, and enter step S10.

It is understandable that in actual production, during the process of producing the target demand weight for the target steel company at the target supply port, abnormal interruptions (such as transportation line interruptions, port equipment failures, natural disasters) may occur, causing the target steel company's supply to decline. The material cannot be completed successfully, so the target supply port is set as the abnormal supply port, and the undersupply weight of the abnormal supply port that has not yet completed the supply is obtained, and the undersupply weight is updated to the target demand weight, and returns to step S10. By promptly modifying the supply strategy after an accident occurs, the needs of the target steel companies are guaranteed.

Further, the first range threshold is no more than 15 days. Specifically, according to research, if the water transportation is longer than 15 days, since water transportation is greatly affected by typhoons, rainy seasons, and ice and snow seasons, transportation particle size segregation is more likely to occur during the transportation process, so it is ideal for the water transportation time to be no longer than 15 days. .

The second aspect of the embodiment of this application provides a port mixed ore production system based on estimated quality.

Demand acquisition module: used to obtain the mixed ore demand target of the target steel enterprise. The demand target includes the target demand address.

Port acquisition module: used to obtain the port address of each pre-selected supply port, and determine the simulated supply information between the port address and the target demand address based on the port address and the target demand address. The simulated supply information includes water transportation methods and water transportation. The water transportation time corresponding to the mode, the land transportation mode and the land transportation time corresponding to the land transportation mode. The land transportation mode includes flat transportation mode and bumpy transportation mode. The land transportation time includes flat transportation time and bumpy transportation time; used to obtain the water transportation time not greater than the first The pre-selected supply port of the threshold is the backup supply port; it is used to obtain the land transportation segregation index of each backup supply port that supplies materials to the target steel enterprise. The land transportation segregation index is obtained by the formula PI=FI×TF+BI×TB, where, FI represents the road condition influence coefficient when the I-th backup supply port supplies materials to the target port and is in the flat transportation mode, TF represents the transportation time when the I-th backup supply port supplies materials to the target port and is in the flat transportation mode, BI Indicates the road condition impact coefficient when the I-th backup supply port is supplying materials to the target port and is in bumpy transportation mode. TB represents the transportation time when the I-th backup supply port is supplying materials to the target port and is in bumpy transportation mode. FI The value is less than BI; used to sort the alternative supply ports according to the level of the land transport segregation index corresponding to the alternative supply ports, and obtain the candidate port names; select the first to Nth alternative supply ports from the candidate port names As the target supply port, the target port name is obtained; N is a positive integer, and 1≤N≤the number of backup supply ports.

It can be seen from the above technical solutions that this application provides a port mixed ore feeding method and system based on estimated quality. The port will be used to obtain the mixed ore demand targets of target steel companies through the acquisition demand module. The demand targets include Target demand address, and then determine the simulated transportation mode between the port address and the target demand address based on the port address and the target demand address, as well as the simulated transportation time corresponding to each simulated transportation method, and finally analyze the impact of each simulated transportation method on the mixing The influence coefficient of ore quality can be used to select the port mixing yard that can provide the best quality mixing material from each port. By setting it up in this way, each steel enterprise can avoid establishing its own dedicated mixing yard. Under the premise, each steel company can obtain the mixed ore that meets the quality requirements and ensure the sintering effect.

The present application has been described in detail above in combination with specific implementation modes 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 implementations of the present application, which all fall within the scope of the present application. The scope of protection of this application is determined by the appended claims.

Claims

A port mixed ore feeding method based on estimated quality, which is characterized by including the following steps:

S10, obtain the mixed ore demand target of the target steel enterprise, and the demand target includes the target demand address;

S20, obtain the port address of each preselected supply port, and determine the simulated supply information between the port address and the target demand address according to the port address and the target demand address, wherein the simulated supply The information includes water transportation mode and the water transportation time corresponding to the water transportation mode, land transportation mode and the land transportation time corresponding to the land transportation mode. The land transportation mode includes flat transportation mode and bumpy transportation mode. The land transportation time includes flat transportation. Transport time and bumpy transport time;

S30: Obtain the pre-selected supply port whose water transportation duration is not greater than the first threshold as a backup supply port;

S40, obtain the land transportation segregation index of each of the backup supply ports that supplies materials to the target steel enterprise. The land transportation segregation index is obtained by the formula PI=FI×TF+BI×TB, where FI represents the Ith The road condition influence coefficient when the backup supply port supplies materials to the target port and is in the flat transportation mode, TF represents the first backup supply port and is in the flat transportation mode when supplying materials to the target port. BI represents the road condition impact coefficient when the first backup supply port supplies materials to the target port in the bumpy transportation mode, and TB represents the first backup supply port. The transportation time when the target port supplies materials in the bumpy transportation mode, the value of FI is less than BI;

S50: Sort the backup supply ports according to the level of the land transportation segregation index corresponding to the backup supply port, and obtain the name of the candidate supply port; select the first to the third from the name of the candidate supply port. N backup supply ports are used as target supply ports to obtain the name of the target supply port; the N is a positive integer, and 1≤N≤the number of the backup supply ports.
The port mixed ore feeding method based on estimated quality according to claim 1, characterized in that,

Also includes steps:

Estimate the wind level during the period when the pre-selected supply port supplies materials to the target steel enterprise and is in the water transportation mode;

If the wind level is greater than the wind threshold, the range of the first threshold is narrowed.
The port mixed ore feeding method based on estimated quality according to claim 1, characterized in that,

The road condition influence coefficient FI of the flat transportation mode ranges from 0.01 to 0.04;

The road condition influence coefficient BI of the bumpy transportation mode ranges from 0.05 to 0.08.
The port mixed ore feeding method based on estimated quality according to claim 1, characterized in that,

The demand target also includes a target demand weight;

It also includes the step of: obtaining the supply capacity of the target supply port;

According to the level of the supply capacity of the target supply port, the supply priority of the target supply port is sorted to obtain the target order port. According to the target demand weight and the corresponding supply priority The supply capacity of the target ordering port divides the target demand weight into a combined order completed by a plurality of the target ordering ports, and the combined order includes a plurality of supply task orders;

Send the supply task order to the corresponding target order port.
The port mixed ore feeding method based on estimated quality according to claim 1, characterized in that,

Also includes steps:

S61, obtain the current production status of the target order port with the supply task order;

S62, if the current production status of the target ordering port with the supply task order is an abnormal state, obtain the target ordering port corresponding to the abnormal status as an abnormal supply port;

S63: Obtain the unavailable weight of materials that have not been completed at the target ordering port;

S64: Update the undersupplied weight to the target required weight, and enter step S10.
The port mixed ore feeding method based on estimated quality according to claim 1, characterized in that,

The first threshold range is no more than 15 days.
A port mixed ore production system based on estimated quality, which is characterized by including:

Demand acquisition module: used to obtain the mixed ore demand target of the target steel enterprise, and the demand target includes the target demand address;

Port acquisition module: used to obtain the port address of each pre-selected supply port, and determine the simulated supply information between the port address and the target demand address according to the port address and the target demand address. The supply information includes the water transportation mode and the water transportation time corresponding to the water transportation mode, the land transportation mode and the land transportation time corresponding to the land transportation mode, the land transportation mode includes the flat transportation mode and the bumpy transportation mode, and the land transportation time Including flat transportation time and bumpy transportation time; used to obtain the pre-selected supply port whose water transportation time is not greater than the first threshold is a backup supply port; used to obtain each of the backup supply ports is the target steel The land transportation segregation index of the enterprise's supply of materials. The land transportation segregation index is obtained by the formula PI=FI×TF+BI×TB, where FI indicates that the first backup supply port is in the state when supplying materials to the target port. The road condition influence coefficient in the flat transportation mode, TF represents the transportation time in the flat transportation mode when the first backup supply port supplies materials to the target port, and BI represents the first backup supply port. The road condition influence coefficient when the target port is in the bumpy transportation mode when supplying materials, TB represents the transportation time when the I-th backup supply port is in the bumpy transportation mode when supplying materials to the target port, The value of FI is less than BI; used to sort the alternative supply ports according to the level of the land transportation segregation index corresponding to the alternative supply ports, and obtain the candidate supply port names; from the candidate supply port names Screen the first to Nth backup supply ports as the target supply ports to obtain the name of the target supply ports; the N is a positive integer, and 1≤N≤the number of the backup supply ports.