CN117540941A - Mixed ore production method and system based on port - Google Patents

Mixed ore production method and system based on port Download PDF

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CN117540941A
CN117540941A CN202210902697.6A CN202210902697A CN117540941A CN 117540941 A CN117540941 A CN 117540941A CN 202210902697 A CN202210902697 A CN 202210902697A CN 117540941 A CN117540941 A CN 117540941A
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刘雁飞
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Hunan Zhongye Changtian Energy Conservation And Environmental Protection Technology Co ltd
Zhongye Changtian International Engineering Co Ltd
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Abstract

The invention provides a port-based mixed ore production method and a port-based mixed ore production system, which comprise the following steps: obtaining a mixed ore demand target of a target steel enterprise; obtaining a simulated production formula according to the target demand components; marking a preselected feed port; determining the simulated transportation time of each preselected feed port for feeding the target steel enterprise; determining the simulated feeding time length of each preselected feeding port for feeding the target steel enterprise; obtaining a predicted feed quality for each preselected feed port; acquiring a unit supply price of each preselected feed port; acquiring secondary calculation cost (comprehensively considering cost) according to the price influence coefficient, the time influence coefficient and the quality influence coefficient; a supply task order is assigned to the reserve supply port. According to the port-based mixed ore production method and system provided by the invention, different requirements of the target steel enterprise are fully considered, and the backup feeding port is conveniently selected according to the actual requirements of the target steel enterprise so as to make specific selection.

Description

Mixed ore production method and system based on port
Technical Field
The application relates to the technical field of sintering, in particular to a port-based mixed ore production method and system.
Background
In the field of steel sintering technology, iron-containing raw materials (mainly various iron ores, or other iron-containing materials) that enter the sintering processThe raw materials) have stable chemical components (mainly examined as SiO 2 And segregation degree of TFe), has great effect on stable and smooth production of sintering, cost reduction and synergy. In actual production, enterprises can establish own mixing material fields for ensuring the stability of the chemical components of iron ore in the sintering process, and after the iron-containing raw materials in different production places are uniformly mixed in the mixing material fields, mixed ores with stable chemical components are produced to be used as iron-containing raw materials (mixed ores) for sintering production.
The existing iron-containing raw material production, the sintering mixing stock ground generally adopts a secondary mixing process, a steel enterprise needs to be provided with a primary stock ground and a secondary stock ground, and the mixing flow is as follows: (1) stacking each iron-containing raw material entering a factory to a primary stock ground; (2) Conveying all the iron-containing raw materials to a pre-dosing tank for standby through a small belt; (3) The stacker/reclaimer stacks various iron-containing raw materials from the pre-proportioning tank layer by layer in a secondary material field to a set height; (4) And the stacking/reclaiming machine conveys the uniformly stacked and mixed mixture to a sintering process for use in a intercepting mode. The stock of the secondary stock yard generally meets the production requirements of steel enterprises for 6 to 7 days, the occupied area of the stock yard is large (the primary stock yard of a certain factory occupies 500m multiplied by 250m, and the secondary stock yard occupies 500m multiplied by 100 m), and the steel enterprises themselves adopt a secondary mixing process, so that the investment is high and the equipment is complex. In steel production, the operation rates of sintering and blast furnaces are above 0.9, the operation rates of a primary stock yard and a secondary stock yard are generally about 0.7, and the productivity of the primary stock yard and the secondary stock yard equipment is not fully utilized.
Moreover, the iron and steel enterprises themselves adopt a secondary mixing process, and the following defects are also caused: (1) The secondary material field material pile has a height of more than ten meters, the phenomenon of material collapse often occurs in rainy season due to open-air operation, and the mixing stacker and the mixing reclaimer belong to large material field equipment, and have high daily maintenance and overhaul cost, severe environment and high overhaul difficulty; (2) In the process of tiling interception, a secondary stock ground is provided with a uniformly mixed ore pile of about 10 ten thousand tons, and the production period is seven and eight days; (3) The production period is long, the traceability of chemical components of the mixture is poor, and silicon operation difficulties in the period and the like are large.
In view of the above, it is desirable to provide a port-based method for producing blended ores to solve at least some of the above-mentioned problems.
Disclosure of Invention
In order to provide a blending ore meeting the requirements of a steel enterprise for the steel enterprise on the premise of avoiding each steel enterprise from establishing a self special blending stock field (a primary stock field and a secondary stock field), the application provides a port-based blending ore production method and a port-based blending ore production system.
The first aspect of the application provides a port-based mixed ore production method, which comprises the following steps:
obtaining a mixed ore demand target of a target steel enterprise, wherein the demand target comprises a target demand weight, a target demand component, a target arrival time and a target demand address;
Obtaining a simulated production formula according to the target demand components;
obtaining port production formulas of all mixing ports, matching the port production formulas with the simulated production formulas, and marking the mixing ports with the port production formulas conforming to the simulated production formulas as preselected feeding ports;
acquiring a port address of each pre-selected feed port, and determining the simulated transportation time of each pre-selected feed port for feeding the target steel enterprise according to the port address, the target demand address and the transportation route between the port address and the target demand address;
determining the simulated feeding duration of each pre-selected feeding port for feeding the target steel enterprise according to the target arrival time and the simulated transportation time;
obtaining a unit supply price of each pre-selected feed port for feeding the target steel enterprise, wherein the unit supply price comprises transportation cost, production cost and target profit, and the unit price can be calculated by a formula 3; obtaining the estimated feed quality of each pre-selected feed port for the target steel enterprise feed;
obtaining secondary calculation cost (comprehensive consideration cost) according to a preset price influence coefficient, a preset transportation time influence coefficient and a preset quality influence coefficient, sequencing the feeding priorities of the preselected feeding ports according to the secondary calculation cost (comprehensive consideration cost), and obtaining a standby feeding port according to the corresponding feeding priorities, wherein the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient are 1 at minimum;
A supply task order is assigned to the reserve supply port.
In one implementation, the port-based blended ore production method further comprises: acquiring the feed capacity of each preselected feed port for feeding the target steel rabbet in the simulated feed time period; demand targets also include target demand weights; the step of distributing the feed task order to the backup feed port specifically includes:
splitting the target demand weight into a combined order which is completed by combining a plurality of standby feed ports according to the target demand weight and the feed capacity of the standby feed ports corresponding to the feed priority, wherein the combined order comprises a plurality of feed task orders;
and sending the feeding task order to a corresponding standby feeding port.
In one implementation, the port-based blended ore production method further comprises the steps of:
acquiring the current production state of a standby feed port with a feed task order;
if the current production state of the standby feed port with the feed task order is an abnormal state, acquiring the standby feed port corresponding to the abnormal state as an abnormal feed port;
acquiring the undersupply weight of the incomplete feeding of the abnormal feeding port;
the undersupply weight is updated to the target demand weight and the process proceeds to step S10.
In one implementation, the step of obtaining a simulated production recipe based on the target demand component;
acquiring operation parameters of a proportioning tank and a strong mixer of a blending port, and establishing a blending ore production model;
simulating uniform mixing production of components meeting target requirements by using a uniform mixing production model, and obtaining a simulation production formula of the components meeting the target requirements by using a simulation production result; or alternatively
And determining a target formula according to the target demand components, and acquiring a simulated production formula meeting the target formula from a library of preset formulas according to the target formula.
In one implementation, "acquire feed capacity for each preselected feed port during the simulated feed duration" in step S60; "specifically includes:
acquiring current feed capacity corresponding to the current in-port reserved raw materials of each preselected feed port in the simulated feed duration;
acquiring in-transit feeding capacity corresponding to in-transit conveying raw materials which are conveyed to a preselected feeding port before the current feeding capacity is consumed;
the feed capacity of each preselected feed port for the duration of the simulated feed is obtained from the current feed capacity and the in-transit feed capacity.
In one implementation, the port-based blended ore production method further comprises:
The blending ore demand target in step S10 further includes a target demand quality including a high-quality blending ore, a medium-quality blending ore, and a low-quality blending ore;
in step S30, "the port of the mixed material with the port production recipe conforming to the simulated production recipe is marked as the pre-selected feeding port" is specifically:
if the target required quality is high-quality mixed ore, marking a mixed material port consistent with the port production formula and the simulated production formula as a preselected feeding port;
and if the target required quality is the medium-quality mixed ore or the low-quality mixed ore, marking the mixed ore with the port production formula conforming to the simulated production formula as a preselected feeding port.
In one implementation, the port-based blended ore production method further comprises:
if the target required quality is high-quality mixed ore, presetting a price influence coefficient to be 1;
if the target required quality is low-quality mixed ore, the preset transportation time influence coefficient and/or the preset quality influence coefficient is 1.
In one implementation, the step of obtaining the secondary calculation cost (comprehensively considering the cost) according to the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient specifically includes:
And calculating to obtain secondary calculation cost PJ by adopting a formula PJ=Zk=Yk=Tk+P, wherein Zk is a preset quality influence coefficient, yk is a preset price influence coefficient, tk is a preset transportation time influence coefficient, P is a unit feed price, J is any target steel rabbet, and k is any preselected feed port.
A second aspect of the embodiments of the present application provides a blended ore production system,
the blending ore production system comprises: the system comprises a plurality of production planning modules, a plurality of port mixing material field control modules and a port mixing mineral cloud server connected with the plurality of production planning modules and the plurality of port mixing material field control modules;
the production planning module is used for acquiring a mixed ore demand target of a target steel enterprise, wherein the demand target comprises a target demand weight, a target demand component, a target arrival time and a target demand address;
the port mixing field control module is used for acquiring a simulated production formula according to target demand components, matching the port production formula with the simulated production formula, and marking a mixing port of which the port production formula accords with the simulated production formula as a preselected feeding port; acquiring a port address of each pre-selected feed port, and determining the simulated transportation time of each pre-selected feed port for feeding the target steel enterprise according to the port address, the target demand address and the transportation route between the port address and the target demand address; determining the simulated feeding duration of each pre-selected feeding port according to the target arrival time and the simulated transportation time; acquiring a unit supply price of each pre-selected feed port for feeding the target steel enterprise, wherein the unit supply price comprises transportation cost, production cost and target profit; obtaining the estimated feed quality of each pre-selected feed port for the target steel enterprise feed; acquiring secondary calculation cost (comprehensive consideration cost) according to a preset price influence coefficient, a preset transportation time influence coefficient and a preset quality influence coefficient, sequencing the feeding priority of a preselected feeding port according to the secondary calculation cost (comprehensive consideration cost), and acquiring a standby feeding port according to the corresponding feeding priority; traversing each standby feed port according to the feed priority until the combined feed yield of the plurality of standby feed ports reaches the target demand weight, and generating a combined order, wherein the combined order comprises a plurality of feed task orders; splitting the target demand weight into a combined order which is completed by combining a plurality of standby feed ports according to the feed capacity of the standby feed ports corresponding to the target demand weight and the feed priority, wherein the combined order comprises a plurality of feed task orders; and sending the feeding task order to a corresponding standby feeding port.
In one implementation, the port-based blended ore production method further comprises:
the port mixing material field control system is also used for acquiring the current production state of a standby material supply port with a material supply task order; if the current production state of the standby feed port with the feed task order is an abnormal state, acquiring the standby feed port corresponding to the abnormal state as an abnormal feed port; acquiring the undersupply weight of the incomplete feeding of the abnormal feeding port; the under-fed weight is updated to the target demand weight.
According to the technical scheme, the method and the system for producing the mixed ore based on the port, provided by the application, are characterized in that the steel enterprises send the demand information of the mixed ore to the port mixed ore cloud server through the production planning module, the port mixed ore cloud server is in communication connection with port mixed ore control modules distributed in all places, the real-time production state of each port mixed ore field is obtained, the feeding information of each port is obtained, then the demand information of the steel enterprises on the mixed ore is matched with the feeding information of each port mixed ore according to the preset priority, so that the port mixed ore for providing the mixed ore is selected from each port, and by the arrangement of the method, each steel enterprise can obtain the mixed ore meeting the demand on the premise of avoiding each steel enterprise to establish own special mixed ore.
The beneficial effects are that:
according to the port-based mixed ore production method, the production links of mixed ores are arranged in ports, the demand targets comprise target demand components, target arrival time and target demand addresses, then the target demand components of the target steel enterprises are compared with port production formulas of all ports, the mixed material ports capable of meeting the feed components are obtained as preselected feed ports, so that the demands of the target steel enterprises on the target demand components are met, meanwhile, based on the simulated transportation time of each preselected feed port for the target steel enterprise feed, the unit supply price of each preselected feed port for the target steel enterprise feed and the estimated feed quality of each preselected feed port for the target steel enterprise feed, the secondary calculation cost (comprehensive consideration cost) is obtained according to the preset price influence coefficient, the preset transport time influence coefficient and the preset quality influence coefficient, the preselected feed priority is carried out according to the low-to-high order of the secondary calculation cost (comprehensive consideration cost), and the actual demand of the target steel enterprise feed is not met according to the corresponding priority, and then the demand of the target steel enterprise feed is fully selected according to the actual demand of the port-based on the preset demand of the preselected feed ports; compared with the traditional mixed ore production scheme, the mixed ore production method based on the port avoids each steel enterprise from establishing own special mixed material fields (a primary material field and a secondary material field), thereby avoiding a large amount of ore storage, reducing the occupation of funds and reducing the occupation of material field area.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of a process flow of producing a blended ore according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a method for producing a blended ore based on a port according to an embodiment of the present application;
fig. 3 is a system schematic diagram of a blending production system according to an embodiment of the present disclosure.
Detailed Description
In order to more clearly describe the production process of the mixed ore provided by the embodiment of the application, the production process of the mixed ore of the port mixing yard is first described as necessary.
As shown in fig. 1, the production process of the blended ore is as follows:
(1) After the ocean on-road raw materials enter a port, on one hand, iron-containing raw material varieties can be stacked to ports and docks, and on the other hand, the raw materials can be directly stirred into iron ore raw material proportioning tanks of corresponding varieties.
(2) The reclaimer conveys the raw materials of a plurality of varieties at a port and a dock to corresponding pre-proportioning tanks through a conveyor, the raw materials for uniform mixing ore production are various iron ores, as shown in fig. 1, a plurality of (e.g. 13) pre-proportioning tanks exist, namely, the condition that the raw materials can uniformly mix the various (e.g. 13) iron ores at most is indicated.
(3) The plurality of disc feeders respectively convey the corresponding raw materials in the pre-dosing tank to the metering system, and the plurality of disc feeders simultaneously meter the conveyed feeding amount in the conveying process.
(4) The metering system delivers the blended raw materials to a mixing device (such as a vertical intensive mixer or a traditional mixer), and the vertical intensive mixer realizes deep mixing of the raw materials by means of a stirring paddle rotating at a high speed.
(5) The evenly mixed materials are sent to a port for stockpiling or to a target user through a transportation link.
As shown in fig. 1, the chemical composition and the price of each raw material in each dosing tank are all known amounts,
the iron content TFe of the blended ore exiting the vertical intensive mixer can be calculated as follows:
wherein: TFeN is the iron element content percentage of iron ore of the Nth batching tank, and N is a positive integer less than or equal to the total batching tank number; GN is the ore blending flow of the iron ore of the Nth blending groove participating in ore blending, and the unit is t/min; g is the total ore blending flow of the whole blending tanks, and the unit is t/min.
SiO of mixed ore from vertical strong mixer 2 The content TSi can be calculated as follows:
wherein: TSiN is SiO of iron ore of the Nth batch tank 2 The content percentage, N is a positive integer less than or equal to the total batching groove number; GN is the ore blending flow of the iron ore of the Nth blending tank participating in the ore blending; units of t/min; g: total ore-distributing flow of all material-distributing tanks, unit t/min
The blending cost P from the vertical intensive mixer can be calculated as follows:
wherein: p is the production cost (unit feed price) of the unit blending ore, unit: meta/t; k is a coefficient, and the production cost of factors such as power consumption, mechanical depreciation and the like is considered, for example, K can be 1.05 to 1.1; PN: unit price of iron ore of nth batch tank: meta/t; GN is the ore blending flow of the iron ore of the Nth blending groove participating in ore blending, and the unit is t/min; g is the total ore blending flow of the whole blending tanks, and the unit is t/min.
It should be noted that the requirements of the steel enterprise on the evenly mixed ores are large, and the requirements on the chemical components of the steel enterprise are stable; in the production process, when the corresponding mixed ore of a certain factory is produced, the formula of the mixed ore is stable and unchanged; the port mixing material field can generate production formulas corresponding to different qualities and prices in real time according to the existing iron ore sources and reserves of the port. The production formulation is shown in table 1:
table 1: port mixing material field production formula table
As shown in figure 1, various mineral seeds are mixed to produce mixed mineral, the production of the mixed mineral is a physical mixing process, and the main control parameter in the production process of the mixed mineral is that the flow rate proportion of each mineral seed in the production process is stable.
As shown in table 1, the chemical components of the ore species involved in the production of the blended ore and the proportion of each chemical component are known, so that the production formulation can be generated in advance, the quality and cost of the blended ore of different production formulations are different, and the production formulation can be generated in each port blended ore according to the historical production data of the blended ore (the operation parameters of the material mixing tank and the intensive mixer of the port blended ore) or the requirements of each factory on the blended ore, the production formulation can be pushed out in the blended ore production model according to the blended ore production model constructed by the formulas 1 to 3, namely, the production formulation can be generated in each port blended ore according to the storage condition of the existing raw materials, namely, the production formulation of each existing port blended ore is the production formulation executable by each port blended ore.
In order to provide a blending ore meeting the requirements of a steel enterprise for the steel enterprise on the premise of avoiding each steel enterprise from establishing a self special blending stock field (a primary stock field and a secondary stock field), the application provides a port-based blending ore production method and a port-based blending ore production system.
As shown in fig. 2, an embodiment of the present application provides a method for producing a blended ore based on a port, including the steps of:
s10, obtaining a blending ore demand target of a target steel enterprise, wherein the demand target comprises a target demand component, target arrival time and a target demand address.
It can be understood that in this embodiment, a blending ore demand target of each target steel enterprise is obtained, where the demand target includes a target demand component, a target arrival time, and a target demand address, where the target demand component is generated by the steel enterprise for its own production experience and order quality, and the target demand component in the present invention is a known quantity; the arrival of bulk blending ores at a target iron and steel plant is a continuous transportation process, and can be understood that the transportation time meets the first arrival time day and arrival deadline day, and the target arrival time is described by meeting the arrival deadline day; the target demand address is the current address of the target steel enterprise. Aiming at the demand target of the target steel enterprise, acquisition is carried out through a production planning module arranged corresponding to the target steel enterprise, wherein the port address can be one or a plurality of port addresses, namely, one mixed material port can be used as the target steel enterprise for feeding, and a plurality of mixed material ports can be used as the target steel enterprise for feeding; if the port addresses are multiple, the demand task orders can be split into multiple parts according to the different port addresses.
S20, obtaining a simulated production formula according to the target demand components. Specifically, a target formula is determined according to target demand components of a target steel enterprise, and a simulated production formula is determined according to the target formula.
In the practical application process, each target steel rabbet (mixing material field has rich mixing material data, namely the production formula of the mixing mineral, each mixing mineral has corresponding mixing mineral proportion (production formula) of different mineral types, different steel rabbets have different technical parameter requirements on the mixing mineral, for a single steel rabbet, each steel rabbet has stable chemical components in the mixing mineral, but for different steel rabbets, the requirements on the mixing mineral are different, the procedures of sintering, a blast furnace and the like of each steel rabbet are suitable for the respective mixing mineral component requirements, in particular, the different chemical components have great influence on the operation of sintering and blast furnace, the cost of the steel rabbet is high, the mixing mineral cost of high-grade low-harmful elements is high, the sintering and blast furnace procedure is simple to operate, the mixing mineral cost of the low-grade high-harmful elements is low, the complex and the high-procedure operation is simple, the condition of each steel rabbet is different in each steel rabbet, but for different steel rabbets, the requirements on the poor quality steel rabbet are suitable for being adopted, the poor quality steel rabbet is suitable for being replaced in the middle part, and the poor quality steel rabbet is suitable for the production of the poor quality steel rabbet, and the poor quality is suitable for the production of the steel rabbet, and the poor quality requirements are formed in the long-term, and the requirements are suitable for the production of the steel rabbet.
In the embodiment of the present application, the target formulation may be provided in advance by the corresponding steel enterprise, or may be obtained by simulation through a pre-established blended ore production model, specifically: acquiring operation parameters of a proportioning tank and a strong mixer of a port mixing field, and establishing a mixing ore production model according to the formula 1, the formula 2 and the formula 3; the mixing production of components meeting the requirements is simulated by using the mixing production model, the production process is simulated, different components are modified, and the mixing ore production result can be directly obtained from the mixing ore production model, so that the mixing ore formulas (target formulas) with different qualities are obtained.
S30, obtaining port production formulas of all mixing ports, matching the port production formulas with the simulated production formulas, and marking the mixing ports with the port production formulas conforming to the simulated production formulas as preselected feeding ports;
specifically, as different blending requirements exist for different steel enterprises, the port blending fields can provide blending ores with certain requirements according to the production capacity of the port blending fields, each port blending field can provide blending ores with certain types, namely, a plurality of port production formulas exist, the port blending fields with port production formulas conforming to the simulation formulas are matched with the simulation formulas, and the port blending fields with port production formulas conforming to the simulation formulas are marked as preselected feeding ports. In the embodiment of the application, key indexes for the mixed ore are as follows: siO in the mixed ore 2 And the segregation degree of TFe, specifically, in the embodiment of the application, the quality judging condition of the mixed ore is that TFe is high in quality and SiO 2 Low and high quality; there may be more requirements on quality in actual production, e.g. consider Al 2 O 3 The components are as follows.
S40, acquiring port addresses of each pre-selected feed port, and determining the simulated transportation time of each pre-selected feed port for feeding the target steel enterprise according to the port addresses, the target demand addresses and the transportation route between the port addresses and the target demand addresses.
It will be appreciated that in actual production, due to the heavy target demand weight of the target steel enterprise over a period of time, a single port is generally unable to meet the feed demand, often requiring multiple ports to cooperatively provide and deliver blending stock to the target steel enterprise. Optionally, each feeding port is provided with a corresponding port address, and a transportation route can be planned by combining the port address with the target demand address of the target steel enterprise with big data, artificial intelligence or worker experience, wherein the transportation route comprises transportation modes and transportation mileage of each transportation mode, and further, the simulated transportation time of each preselected feeding port for feeding the target steel enterprise is determined.
Optionally, the transportation mode is at least one of a water transportation mode, an iron transportation mode and a vehicle transportation mode, and if the transportation mode comprises two or more different modes, the influence of the conversion process is not considered.
S50, determining the simulated feeding duration of each pre-selected feeding port for feeding the target steel enterprise according to the target arrival time and the simulated transportation time.
In the practical application process, the steel enterprise also requires that the mixed ore must be delivered in a preset time under the premise of having strict requirements on the quality and price of the mixed ore so as to ensure the stable production of the steel enterprise, so that the simulated feeding duration of each preselected feeding port needs to be determined according to the target arrival time and the simulated transportation time.
It should be noted that the simulated feeding time lengths of different port mixing yards to the same steel rabbet are different. In the actual process, the mixed ore can be transported in batches, and after a certain weight of mixed ore is produced, a part of mixed ore is transported first.
S60, acquiring a unit supply price of each pre-selected feed port for feeding the target steel enterprise, wherein the unit supply price comprises transportation cost, production cost and target profit; and obtaining the estimated feed quality of each pre-selected feed port for feeding the target steel enterprise.
Alternatively, the price per unit can also be calculated by equation 3.
As can be appreciated, after the production of the port blended ore, due to factors such as vibration in the transportation process, fine particles in the blended ore fall into the bottom of the carrying container through the pores among the large particles to be enriched, so that the quality of the blended ore is reduced (namely, particle size segregation), and the quality of the blended ore is reduced, so that the sintering quality of the next process is affected. The pre-estimated feed quality from the preselected feed port to the target steel enterprise can be obtained according to simulation analysis, and the pre-estimated feed quality from the preselected feed port to the target steel enterprise can be obtained according to historical experimental data or historical experience.
It can be understood that the estimated feed quality is designed to be related to the grain size segregation of the mixed ore reaching the target steel rabbet, if the grain size segregation of the mixed ore obtained by the target steel rabbet is small, the estimated feed quality is good, and if the grain size segregation of the mixed ore obtained by the target steel rabbet is large, the estimated feed quality is poor. In the actual operation process, the utility model can estimate the transport granularity segregation according to the transport route and the transport environment corresponding to the transport route.
S70, acquiring secondary calculation cost (comprehensive consideration cost) according to a preset price influence coefficient, a preset transportation time influence coefficient and a preset quality influence coefficient, sequencing the feed priorities of the preselected feed ports according to the order of the secondary calculation cost (comprehensive consideration cost) from low to high, and acquiring a standby feed port according to the corresponding feed priorities, wherein the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient are at least 1.
Optionally, in the practical application process, if the target steel enterprise has a certain limit on the price of the mixed ore, the cost of the steel enterprise needs to be reduced while the stable production of the steel enterprise is ensured, the price influence coefficient value can be improved, the pre-selected material supply ports are subjected to material supply sequencing according to the unit supply price, and the low price is used as a priority condition to provide a proper material supply port for the steel enterprise preferentially; if the target steel enterprise has a certain limit on the analog feeding time length (the longer the analog feeding time length is, the more uncertain factors are increased, the target steel enterprise may be stopped, and the comprehensive consideration cost is indirectly increased), the stable production of the steel enterprise is ensured, and meanwhile, the uncertain factors are required to be reduced, the influence coefficient of the preset transportation time is improved, the pre-selected feeding ports are fed and ordered according to the analog feeding time length, and the length of the analog feeding time length is taken as a priority condition, so that the proper feeding ports are provided for the steel enterprise preferentially; if the target steel rabbet has a certain limit on the estimated feeding quality of the mixed ore (if the granularity segregation of the mixed ore after arriving at the field is large, the mixed ore needs to be re-mixed at the steel rabbet or the sintering quality is poor, and the indirect abutting leads to the increase of comprehensive consideration cost), the preset quality influence coefficient can be improved, the pre-selected feeding ports are fed and ordered according to the preset quality influence coefficient, and the granularity segregation is small as a priority condition, so that the steel rabbet is preferentially provided with a proper feeding port.
It should be noted that, under similar circumstances, the shorter the transportation time, the smaller the segregation of the transportation granularity of the mixture during transportation, and the target steel enterprise may select the feeding ports due to the urgent material usage time or the segregation during transportation, so the time influence coefficient value may be increased to order the feeding of the preselected feeding ports, and the shorter the transportation time is as a priority condition, so as to provide more feeding ports for the steel enterprise.
In general, in order to ensure the consistency of the incoming materials or the quality of the mixed ore, the steel enterprise selects ports with high feeding quality as much as possible, at this time, the quality influence coefficient value can be improved, the preselected feeding ports are subjected to feeding priority ranking, and the quality is high as a priority condition, so that more feeding ports are provided for the steel enterprise.
It can be appreciated that in the invention, the price, the transportation time and the quality are fully considered to provide decision factors for the target steel enterprise, the secondary calculation cost is obtained according to the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient, the feeding priority sorting is performed on the pre-selected feeding ports from low to high according to the secondary calculation cost, and the standby feeding ports are obtained according to the corresponding feeding priorities, wherein the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient are 1 at minimum, the corresponding priority with low secondary calculation cost (comprehensive consideration cost) is high, and the target steel enterprise can conveniently perform corresponding selection according to the actual demands of the target steel enterprise.
S80, distributing the feeding task order to the standby feeding port.
Specifically, the method comprises the steps of obtaining the feeding capacity of each preselected feeding port for feeding the target steel enterprise in the simulated feeding time period; demand targets also include target demand weights; the step S80 specifically includes: splitting the target demand weight into a combined order which is completed by combining a plurality of standby feed ports according to the target demand weight and the feed capacity of the standby feed ports corresponding to the feed priority, wherein the combined order comprises a plurality of feed task orders; and sending the feeding task order to a corresponding standby feeding port.
According to the port-based mixed ore production method, the production links of mixed ores are arranged in ports, the demand targets comprise target demand components, target arrival time and target demand addresses, then the target demand components of the target steel enterprises are compared with port production formulas of all ports, the mixed material ports capable of meeting the feed components are obtained as preselected feed ports, so that the demands of the target steel enterprises on the target demand components are met, meanwhile, based on the simulated transportation time of each preselected feed port for the target steel enterprise feed, the unit supply price of each preselected feed port for the target steel enterprise feed and the estimated feed quality of each preselected feed port for the target steel enterprise feed, the secondary calculation cost (comprehensive consideration cost) is obtained according to the preset price influence coefficient, the preset transport time influence coefficient and the preset quality influence coefficient, the preselected feed priority is carried out according to the low-to-high order of the secondary calculation cost (comprehensive consideration cost), and the actual demand of the target steel enterprise feed is not met according to the corresponding priority, and then the demand of the target steel enterprise feed is fully selected according to the actual demand of the port-based on the preset demand of the preselected feed ports; compared with the traditional mixed ore production scheme, the mixed ore production method based on the port avoids each steel enterprise from establishing own special mixed material fields (a primary material field and a secondary material field), thereby avoiding a large amount of ore storage, reducing the occupation of funds and reducing the occupation of material field area.
In actual production, in general, the feeding capacity of the backup feeding port may not reach the required mixed ore demand weight of a single steel enterprise, then the target demand weight may be split according to the feeding priority and is completed by combining a plurality of backup feeding ports, for example, 100 ten thousand tons are required for the steel enterprise a, the backup feeding port 1, the backup feeding port 2, the backup feeding port 3 and the backup feeding port 4 are sequentially ordered according to the feeding priority until the backup feeding port N, the capacity of the backup feeding port 1 in its simulated transportation time is 60 ten thousand tons, the capacity of the backup feeding port 2 in its simulated transportation time is 30 ten thousand tons, the capacity of the backup feeding port 3 in its simulated transportation time is 20 ten thousand tons, and the target demand weight of the steel enterprise a is completed by combining the backup feeding port 1 for 60 ten thousand tons, the backup feeding port 2 for 30 ten thousand tons, and the backup feeding port 3 for 10 ten thousand tons.
Further, the method further comprises the steps of: s91, acquiring the current production state of a standby feed port with a feed task order; s92, if the current production state of the standby feed port with the feed task order is an abnormal state, acquiring the standby feed port corresponding to the abnormal state as an abnormal feed port; s93, obtaining the underfeed weight of the abnormal feed port which is not fed yet; s94, updating the under-feed weight to the target demand weight, and proceeding to step S10.
In actual production, in the process of executing the production process of the target demand weight by the spare supply port according to the production formula of the target steel enterprise, the supply of the target steel enterprise may not be successfully completed due to abnormal interruption (such as interruption of a transportation line, failure of port equipment, natural disaster), so the spare supply port is set as the abnormal supply port, the undersupply weight of the supply which is not completed by the abnormal supply port is obtained, the undersupply weight is updated to the target demand weight, and the step S10 is returned. The feeding strategy is timely modified after the feeding accidents happen, so that the requirements of the target steel enterprise are further guaranteed.
Further, step S20 specifically includes: acquiring operation parameters of a proportioning tank and a strong mixer of a blending port, and establishing a blending ore production model; simulating uniform mixing production of components meeting target requirements by using a uniform mixing production model, and obtaining a simulation production formula of the components meeting the target requirements by using a simulation production result; or determining a target formula according to the target demand components, and acquiring a simulated production formula meeting the target formula from the target formula and a preset formula library.
In actual production, each steel enterprise has a blending menu adapting to the situation of the enterprise, and in production of a certain steel enterprise, because of factors such as transformation, production operation, international iron ore market fluctuation and the like, the blending menu is regulated, but the menu is stable in a period of time, and frequent regulation of the blending menu is not allowed in production, namely, each steel enterprise has a blending menu adapting to the current situation of the enterprise, so that a blending production model is required to be established according to the operation parameters of a blending tank and a powerful mixer of a blending port, and blending production meeting target demand components is simulated, so that problems in the process of blending production are avoided in actual situations, and meanwhile, the optimal solution of each steel enterprise adapting to the stable blending of each component of the production habit is also realized.
Further, the step of "obtaining the feed capacity of each preselected feed port for the target steel rabbet feed during the simulated feed period" specifically includes: acquiring current feed capacity corresponding to the current in-port reserved raw materials of each preselected feed port in the simulated feed duration; acquiring in-transit feeding capacity corresponding to in-transit conveying raw materials which are conveyed to a preselected feeding port before the current feeding capacity is consumed; the feed capacity of each preselected feed port for the duration of the simulated feed is obtained from the current feed capacity and the in-transit feed capacity.
It will be appreciated that in actual production, there may be a number of situations where the stock material currently in the port of the preselected feeder port is not available to meet the feed capacity in time, so the feed capacity of each preselected feeder port within the simulated feed period is achieved by transporting the corresponding in-transit feed capacity of the in-transit feed material against the preselected feeder port prior to the consumption of the current feed capacity.
Further, the blending mineral demand target in step S10 further includes a target demand quality, where the target demand quality includes a high-quality blending mineral, a medium-quality blending mineral, and a low-quality blending mineral; in step S30, "the port of the mixed material with the port production recipe conforming to the simulated production recipe is marked as the pre-selected feeding port" is specifically: if the target required quality is high-quality mixed ore, marking a mixed material port consistent with the port production formula and the simulated production formula as a preselected feeding port; and if the target required quality is the medium-quality mixed ore or the low-quality mixed ore, marking the mixed ore with the port production formula conforming to the simulated production formula as a preselected feeding port. Optionally, the high-quality blending ore in the invention not only has good ingredients of the blending ore, but also has proper blending degree (namely small segregation of transportation granularity) after the blending ore is transported to a target steel enterprise.
As can be appreciated, the target demand quality of each steel enterprise is inconsistent, so that the target demand quality is divided into high-quality mixed ores, medium-quality mixed ores and low-quality mixed ores, and then different modes are set through different target demand qualities, specifically, if the target demand quality is the high-quality mixed ores, a mixed material port with a port production formula consistent with the simulated production formula is marked as a preselected feed port; if the target required quality is medium-quality mixed ore or low-quality mixed ore, marking a mixed material port with a port production formula conforming to the simulated production formula as a preselected feeding port, thereby ensuring the requirement of the target steel enterprise on the target required quality.
Further, if the target required quality is high-quality mixed ore, the preset price influence coefficient is 1; if the target required quality is low-quality mixed ore, the preset transportation time influence coefficient and/or the preset quality influence coefficient is 1.
It can be appreciated that if the target required quality is a high quality blended ore, only the preset transportation time influence system and the quality influence coefficient can be considered, the required transportation time is the fastest, the blended ore quality is the best, and the preset price influence coefficient does not need to be considered; if the target required quality is low-quality mixed ore, the influence coefficient of the preset transportation time and the influence coefficient of the preset quality are not considered, and only the influence coefficient of the preset price is considered, so that the cost of the steel enterprise is reduced; if the target required quality is the medium-quality mixed ore, the influence coefficient of the preset transportation time, the influence coefficient of the preset price and the influence coefficient of the preset productivity can be considered, and the influence coefficient of at least one of the three can be considered preferably according to the actual situation.
Further, the step of obtaining the secondary calculation cost (comprehensively considering the cost) according to the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient specifically includes: and calculating to obtain secondary calculation cost PJ by adopting a formula PJ=Zk=Yk=Tk+P, wherein Zk is a preset quality influence coefficient, yk is a preset price influence coefficient, tk is a preset transportation time influence coefficient, P is a unit feed price, J is any target steel rabbet, and k is any preselected feed port.
It can be understood that considering the situation that the requirements of the steel enterprise A can be met by a plurality of ports at the same time, the port supplies are required to be preferentially ordered, after the port mixing ore is produced, the factors such as vibration and the like in the transportation process can cause the fine particles in the mixing ore to fall into the bottom of the carrying container through the pores among the large particles to be enriched, so that the quality of the mixing ore is reduced (namely, granularity segregation) and the segregation is related to the vibration intensity and the vibration intensity duration in the transportation process; the price influence coefficient is the influence factor of the price on the ordering decision and is the most important influence factor, in addition, if the transportation time from the port mixing stock yard to the target steel enterprise is too long, because of more uncontrollable factors in the transportation process, some steel enterprises are sensitive to the transportation time factors in certain special scenes (such as typhoons, rainy seasons and ice and snow seasons), the transportation time influence coefficient from each port to the target steel enterprise can be determined according to historical experimental data.
In actual production, P1 is the unit feed price provided by the standby feed port 1 to the target steel enterprise; p2 is the unit feed price provided by the spare feed port 2 to the target steel enterprise; p3 is the unit feed price provided by the spare feed port 3 to the target steel enterprise; pm is the unit feed price provided by the reserve feed port m to the target steel enterprise. Deviation amount
It will be appreciated that Zk is a preset mass influence coefficient for the target steel rabbet if the target steel rabbet has an ideal feed quality (grain size segregation is not greater than α), and that the closer the preset mass influence coefficient is to 1, the lower the quality requirement for the ideal feed quality (the greater the deviation of allowable grain size segregation) is indicated. In this embodiment, a preset quality influence coefficient may be defined according to the actual requirement of the target steel enterprise, where the preset quality influence coefficient may be 1, or may be 1.2 or 1.3, and if the preset quality influence coefficient is equal to 1, it indicates that the target steel enterprise has a low requirement level for grain size segregation (the allowable grain size segregation is the largest, that is, the grain size segregation is not considered), and the larger the preset quality influence coefficient, the higher the requirement level of the target steel enterprise for grain size segregation is.
It should be noted that if the grain size segregation of the blended ore is larger, the influence of transportation on the quality of the blended ore is larger, the target steel rabbet may be re-blended after being re-blended to the field, and the potential risk for the target steel rabbet which needs to be continuously produced is increased, so that the estimated feed quality can be converted into the secondary calculation cost.
It will be appreciated that if the target steel enterprise has an ideal supply price (the unit adopted price is not higher than β), yk is a preset price influence coefficient of the target steel enterprise, and if the preset price influence coefficient is closer to 1, it indicates that the price requirement of the ideal supply price is lower (the allowable price deviation is larger). In this embodiment, a preset price influence coefficient may be defined according to the actual requirement of the target steel enterprise, where the price influence coefficient may be 1, or may be other values such as 1.05 or 1.4, and if the price influence coefficient is equal to 1, the influence of the price is not considered.
It should be noted that, if the price of the feed port is higher, the price influence of the finished mixed ore becomes larger, and the production cost of the target steel enterprise increases, so that the unit supply price can be converted into the secondary cost.
It will be appreciated that if the target steel enterprise has an ideal transportation duration (transportation duration is no greater than γ), yk is the preset transportation time impact of the target steel enterprise, and if the preset transportation time impact is closer to 1, it indicates that the longer the ideal transportation duration is required (the greater the deviation of the allowable duration to the steel enterprise). In this embodiment, the ideal transportation time length may be defined according to the actual requirement of the target steel enterprise, and the ideal transportation time length may be 1, or may be other values such as 1.05 or 1.4, and if the ideal transportation time length is equal to 1, the influence of the non-transportation time length is described
It should be noted that if the transportation time is long, the risk during transportation increases, and the potential risk for the target steel enterprise that needs to be kept continuously produced increases, so the transportation time can be converted to the secondary calculation cost.
It can be understood that the invention converts the influence coefficients of the preset quality influence coefficient, the preset price influence coefficient and the preset transportation time influence coefficient into the secondary calculation cost.
The application provides a specific embodiment as follows:
if the target steel rabbet is the A steel rabbet, the target demand weight of the target demand steel rabbet is one million tons, the target demand quality is high-quality mixed ore, the target demand components are known, and the simulated production formula can be obtained according to the target demand components;
the port production formula of each mixing port is obtained, the port production formula is matched with the simulated production formula, the mixing port with the port production formula conforming to the simulated production formula is marked as a preselected feed port, and the mixing port with the port production formula conforming to the simulated production formula in the embodiment comprises a preselected feed port 1, a preselected feed port 2 and a preselected feed port 3 up to a preselected feed port M.
S40, acquiring port addresses of each pre-selected feed port, and determining the simulated transportation time of each pre-selected feed port for feeding the target steel enterprise according to the port addresses, the target demand addresses and the transportation route between the port addresses and the target demand addresses, wherein in the embodiment, the transportation route of the pre-selected feed port 1 for feeding the target steel enterprise comprises 500kM of water transportation mode, 400kM of iron transportation mode and 20 days of transportation time; the transportation route for preselecting the material supply port 2 as the target steel enterprise material supply comprises 400kM of water transportation mode, 600kM of iron transportation mode and 22 days of transportation time; the transportation route for preselecting the material supply port 3 as the target steel enterprise material supply comprises 500kM of water transportation mode, 400kM of iron transportation mode and 21 days of transportation time; the transportation route for preselecting the material supply port 4 as the material supply of the target steel enterprise comprises 500kM of railway transportation mode, 600kM of car transportation mode and 25 days of transportation time; the transportation route for preselecting the material supply port 5 as the material supply of the target steel enterprise comprises 500kM of water transportation mode, 100kM of vehicle transportation mode and 30 days of transportation time; the transportation route of the preselected material supply port M for the target steel enterprise comprises 2000kM of water transportation mode, 500kM of vehicle transportation mode and 50 days of transportation time.
S50, determining the simulated feeding duration of each pre-selected feeding port for feeding the target steel enterprise according to the target arrival time and the simulated transportation time; in this embodiment, the target arrival time of the target steel enterprise is required to be all arrival within 60 days, and if the transportation duration of the pre-selected feeding port 1 is 20 days, the simulated feeding duration of the pre-selected feeding port 1 is 40 days.
S60, acquiring a unit supply price of each pre-selected feed port for feeding the target steel enterprise, wherein the unit supply price comprises transportation cost, production cost and target profit; and obtaining the estimated feed quality of each pre-selected feed port for feeding the target steel enterprise.
S70, obtaining secondary calculation cost (comprehensive consideration cost) according to the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient, sequencing the feed priorities of the preselected feed ports according to the secondary calculation cost (comprehensive consideration cost), and obtaining a standby feed port according to the corresponding feed priorities, wherein the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient are 1 at minimum.
Splitting the target demand weight into a combined order which is completed by combining a plurality of standby feed ports according to the target demand weight and the feed capacity of the standby feed ports corresponding to the feed priority, wherein the combined order comprises a plurality of feed task orders; and sending the feeding task order to a corresponding standby feeding port.
In this embodiment, the target steel enterprise a needs to purchase 100 ten thousand tons of high-quality mixed ore, in order to reduce granularity segregation and ensure the supply time, the supply priority is set according to the transport time, the backup supply port 1, the backup supply port 2, the backup supply port 3 and the backup supply port 4 are sequentially ordered according to the supply priority until the backup supply port N, the capacity of the backup supply port 1 in the simulated transport time is 60 ten thousand tons, the capacity of the backup supply port 2 in the simulated transport time is 30 ten thousand tons, the capacity of the backup supply port 3 in the simulated transport time is 20 ten thousand tons, the capacity of the backup supply port N in the simulated transport time is several ten thousand tons, and then 60 ten thousand tons are supplied through the backup supply port 1, 30 ten thousand tons are supplied to the backup supply port 3, and 10 ten thousand tons are combined to complete the target required weight of the target steel enterprise a.
The invention also provides a blending ore production system, which comprises a plurality of production planning modules, a plurality of port blending material field control modules and a port blending ore cloud server connected with the plurality of production planning modules and the plurality of port blending material field control modules; the production planning module acquires a mixed ore demand target of a target steel enterprise, wherein the demand target comprises a target demand component, target arrival time and a target demand address; the port mixing material field control module is used for acquiring a simulated production formula according to target demand components and sending the simulated production formula to the port mixing mineral cloud server; the port mixing cloud server is used for matching the port production formula with the simulated production formula and marking a mixing port of which the port production formula accords with the simulated production formula as a preselected feeding port; acquiring a port address of each pre-selected feed port, and determining the simulated transportation time of each pre-selected feed port for feeding the target steel enterprise according to the port address, the target demand address and the transportation route between the port address and the target demand address; determining the simulated feeding duration of each pre-selected feeding port for feeding the target steel enterprise according to the target arrival time and the simulated transportation time; acquiring a preset quality influence coefficient of each pre-selected feed port for transporting the mixed ore to a target steel enterprise; acquiring a unit supply price of each pre-selected feed port for feeding the target steel enterprise, wherein the unit supply price comprises transportation cost, production cost and target profit; obtaining secondary calculation cost (comprehensive consideration cost) according to a preset price influence coefficient, a preset transportation time influence coefficient and a preset quality influence coefficient, sequencing the feeding priorities of the preselected feeding ports according to the secondary calculation cost (comprehensive consideration cost), and obtaining a standby feeding port according to the corresponding feeding priorities, wherein the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient are 1 at minimum; a supply task order is assigned to the reserve supply port.
According to the technical scheme, the port-based blending ore production method and system provided by the embodiment of the application comprise a plurality of production planning modules, a plurality of port blending material field control modules and a port blending ore cloud server connected with the plurality of production planning modules and the plurality of port blending material field control modules; the production planning module acquires a mixed ore demand target of a target steel enterprise, wherein the demand target comprises a target demand component, target arrival time and a target demand address; the port mixing material field control module is used for acquiring a simulated production formula according to target demand components and sending the simulated production formula to the port mixing mineral cloud server; the port mixing cloud server is used for matching the port production formula with the simulated production formula and marking a mixing port of which the port production formula accords with the simulated production formula as a preselected feeding port; acquiring a port address of each pre-selected feed port, and determining the simulated transportation time of each pre-selected feed port for feeding the target steel enterprise according to the port address, the target demand address and the transportation route between the port address and the target demand address; determining the simulated feeding duration of each pre-selected feeding port for feeding the target steel enterprise according to the target arrival time and the simulated transportation time; acquiring a unit supply price of each pre-selected feed port for feeding the target steel enterprise, wherein the unit supply price comprises transportation cost, production cost and target profit; obtaining the estimated feed quality of each pre-selected feed port for the target steel enterprise feed; obtaining secondary calculation cost according to a preset price influence coefficient, a preset transportation time influence coefficient and a preset quality influence coefficient, sequencing the feeding priority of a preselected feeding port according to the sequence from low to high of the secondary calculation cost, and obtaining a standby feeding port according to the corresponding feeding priority, wherein the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient are 1 at minimum; a supply task order is assigned to the reserve supply port.
The foregoing detailed description has been provided for the purposes of illustration in connection with specific embodiments and exemplary examples, but such description is not to be construed as limiting the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications and improvements may be made to the technical solution of the present application and its embodiments without departing from the spirit and scope of the present application, and these all fall within the scope of the present application. The scope of the application is defined by the appended claims.

Claims (9)

1. The port-based mixed ore production method is characterized by comprising the following steps of:
s10, obtaining a demand target of the mixed ore of a target steel enterprise, wherein the demand target comprises a target demand component, target arrival time and a target demand address;
s20, obtaining a simulated production formula according to the target demand component;
s30, obtaining port production formulas of all mixing material ports, matching the port production formulas with the simulated production formulas, and marking the mixing material ports with the port production formulas conforming to the simulated production formulas as preselected feeding ports;
s40, acquiring port addresses of each pre-selected feed port, and determining the simulated transportation time of each pre-selected feed port for feeding the target steel enterprise according to the port addresses, the target demand addresses and the transportation route between the port addresses and the target demand addresses;
S50, determining the simulated feeding duration of each pre-selected feeding port for feeding the target steel enterprise according to the target arrival time and the simulated transportation time;
s60, acquiring a unit supply price of each pre-selected feed port for feeding the target steel enterprise, wherein the unit supply price comprises transportation cost, production cost and target profit; obtaining the estimated feed quality of each pre-selected feed port for feeding the target steel rabbet;
s70, acquiring secondary calculation cost according to a preset price influence coefficient, a preset transportation time influence coefficient and a preset quality influence coefficient, sequencing the feeding priorities of the preselected feeding ports according to the sequence from low to high of the secondary calculation cost, and acquiring a standby feeding port according to the corresponding feeding priorities, wherein the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient are 1 at minimum;
s80, distributing a feeding task order to the standby feeding port.
2. The port-based mixed ore production method according to claim 1, wherein,
the method also comprises the steps of: acquiring the feeding capacity of each pre-selected feeding port for feeding the target steel enterprise in the simulated feeding time period;
The demand targets further include a target demand weight;
the step S80 specifically includes:
splitting the target demand weight into a combined order which is completed by combining a plurality of standby feed ports according to the target demand weight and the feed capacity of the standby feed ports corresponding to the feed priority, wherein the combined order comprises a plurality of feed task orders;
and sending the feeding task order to the corresponding standby feeding port.
3. The port-based mixed ore production method according to claim 2, wherein,
the method also comprises the steps of:
s91, acquiring the current production state of the standby feed port with the feed task order;
s92, if the current production state of the standby feed port with the feed task order is an abnormal state, acquiring the standby feed port corresponding to the abnormal state as an abnormal feed port;
s93, obtaining the undersupply weight of the abnormal feeding port which is not finished feeding;
and S94, updating the undersupply weight to the target demand weight, and proceeding to step S10.
4. The port-based mixed ore production method according to claim 2, wherein,
The step S20 specifically includes:
acquiring operation parameters of a proportioning tank and a powerful mixer of the blending port, and establishing a blending ore production model; simulating uniform mixing production meeting the target demand components by utilizing a uniform mixing production model, and obtaining a simulation production formula of which the simulation production result meets the target demand components; or alternatively
And determining a target formula according to the target demand component, and acquiring the simulated production formula meeting the target formula from the target formula and a preset formula library.
5. The port-based mixed ore production method according to claim 2, wherein,
the "obtaining the feed capacity of each of the preselected feed ports for feeding the target steel enterprise in the simulated feed period" specifically includes:
acquiring current feed capacity corresponding to the current in-port reserved raw materials of each preselected feed port in the simulated feed duration;
acquiring in-transit feed capacity corresponding to in-transit feed materials transported to the preselected feed port before the current feed capacity is consumed;
and obtaining the feeding capacity of each pre-selected feeding port for feeding the target steel enterprise in the simulated feeding duration through the current feeding capacity and the in-transit feeding capacity.
6. The port-based mixed ore production method according to claim 2, wherein,
the blending ore demand target in step S10 further includes a target demand quality, where the target demand quality includes a high-quality blending ore, a medium-quality blending ore, and a low-quality blending ore;
in step S30, "the mix port whose port production recipe meets the simulated production recipe is marked as a pre-selected feed port" is specifically:
if the target required quality is high-quality blending ore, marking the blending port with the port production formula consistent with the simulated production formula as a preselected feeding port;
and if the target required quality is the medium-quality mixed ore or the low-quality mixed ore, marking the mixed ore port of which the port production formula accords with the simulated production formula as a preselected feeding port.
7. The port-based mixed ore production method of claim 6, wherein,
if the target demand quality is high-quality mixed ore, the preset price influence coefficient is 1;
and if the target required quality is low-quality mixed ore, the preset transportation time influence coefficient and/or the preset quality influence coefficient is 1.
8. The port-based mixed ore production method according to claim 1, wherein the step S70 specifically comprises:
and calculating to obtain a secondary calculation cost PJ by adopting a formula PJ=Zk=Yk=Tk+P, wherein Zk is a preset quality influence coefficient, yk is a preset price influence coefficient, tk is a preset transportation time influence coefficient, P is the unit feed price, J is any target steel enterprise, and k is any pre-selected feed port.
9. The system is characterized by comprising a plurality of production planning modules, a plurality of port mixing material field control modules and port mixing material cloud servers connected with the plurality of production planning modules and the plurality of port mixing material field control modules; wherein,
the production planning module is used for obtaining a demand target of the mixed ore of the target steel enterprise, wherein the demand target comprises a target demand component, target arrival time and a target demand address;
the port mixing material field control module is used for acquiring a simulated production formula according to the target demand components and sending the simulated production formula to the port mixing mineral cloud server;
the port mixing cloud server is used for matching the port production formula with the simulated production formula and marking the mixing port of which the port production formula accords with the simulated production formula as a preselected feeding port; acquiring a port address of each pre-selected feed port, and determining the simulated transportation time of each pre-selected feed port for feeding the target steel enterprise according to the port address, the target demand address and the transportation route between the port address and the target demand address; determining the simulated feeding duration of each pre-selected feeding port for feeding the target steel enterprise according to the target arrival time and the simulated transportation time; acquiring a unit supply price of each pre-selected feed port for feeding the target steel enterprise, wherein the unit supply price comprises transportation cost, production cost and target profit; obtaining the estimated feed quality of each pre-selected feed port for feeding the target steel rabbet; obtaining secondary calculation cost according to a preset price influence coefficient, a preset transportation time influence coefficient and a preset quality influence coefficient, sequencing the feeding priorities of the preselected feeding ports according to the sequence from low to high of the secondary calculation cost, and obtaining a standby feeding port according to the corresponding feeding priorities, wherein the preset price influence coefficient, the preset transportation time influence coefficient and the preset quality influence coefficient are 1 at minimum; and distributing a feeding task order to the standby feeding port.
CN202210902697.6A 2022-07-29 2022-07-29 Mixed ore production method and system based on port Pending CN117540941A (en)

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