CN102004815B - Method for optimizing 'hot metal can of system' interface mode in blast furnace-converter section in steel enterprise - Google Patents
Method for optimizing 'hot metal can of system' interface mode in blast furnace-converter section in steel enterprise Download PDFInfo
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Abstract
The invention discloses a method for optimizing a 'hot metal can of the system' interface mode in a blast furnace-converter section in a steel enterprise. Based on computer simulation software, the novel method can be used for tracking at real time, monitoring and diagnosing the production process of the 'hot metal can of the system'interface mode in the blast furnace-converter section on line, and judging the problems occurring in the production process of the blast furnace-converter section through comparing operation results and actual production data; on one hand, the method can be used for effectively shortening the waiting time before transforming to the converter and lowering the loss, and on the other hand, the method can be used for lowering the temperature of the whole production process, and improving the temperature when transforming to the converter finally, thus achieving the purposes of improving the efficiency of production process, saving the energy and lowering the consumption. The method of the invention is mainly applied to a metallurgy process technique and a computer simulation analogue technique, and can be applied to analyzing and studying work of the similar problems in a system with the 'hot metal can of the system' interface mode in an actual blast furnace-converter section.
Description
Technical field
The present invention relates to metallurgical technology technology and computer simulation technology.Belong to the metallurgical technology technical field, specifically a kind of optimization method to iron and steel enterprise's blast furnace-converter sector " tank on earth " interface model.Be specially adapted to ironmaking and the optimal design of steel-making interface technology and the optimization of general layout.
Background technology
Blast furnace-converter sector " tank on earth " interface model, it is a kind of new technology that engineering optimization is realized at the metallurgical process interface, it refers to that cancelling traditional torpedo tank car or hot-metal bottle at blast furnace-converter sector carries out tank switching midway and convert iron, but directly adopt and be subject to iron flask that molten iron is blended into to converter, in this process, be subject to iron flask to realize accepting, transport, cushion that storage, molten iron pre-service, converter convert that iron, container have enough to meet the need fast and the process layout of the several functions such as hot-metal insulating.Adopt " tank on earth " technique, this process molten iron that the primary air process that cools only occurs, and there is no ladle-to-ladle inclusion absorbing and cooling temperature, not only the molten iron temperature loss reduces, and carrying capacity of environment also reduces greatly.This technique has the characteristics such as shortened process, compact total figure layout, can reduce investment, minimizing floor area, energy-saving and emission-reduction, minimizing iron loss, reduces smoke contamination, have larger economic and social benefit." tank on earth " technique, start to appear at Japanese JFE Fushan ,Jing Bin factory, in large-scale iron and steel enterprises such as the husky steel of China, Laigang, Tang Gang, employing arranged in recent years.
The technology interface of blast furnace-converter sector is the important section that connects ironmaking and steel-making two large operations in steel manufacture process, has played the effect of forming a connecting link, and is also the critical section that is related to the Steel Production Flow Chart global optimization.In recent years, technology interface to blast furnace-converter sector conducts extensive research, but mainly concentrate on logistic regulation, hot metal supply quality, the flow process of section production run, the aspects such as qualitative examination of structural optimization problems, and less about the optimization research of the reconstruction and optimization of the relationship match optimization of section interface inter process and flow process operation, operation function.The transformation to iron and steel power by big steel country of China, the pattern of new generation and big steelworks will exert far reaching influence to China and even world steel industrial expansion, therefore, be necessary to further investigate steel mill's pattern and especially smelt iron-make steel interface model, to show that being applicable to new generation and big steelworks smelts iron-make steel the optimization model at interface, and some important indicators of blast furnace-converter interface of optimization model are optimized, can realize coupling, linking, the coordination and stable of the basic parameters such as material stream, energy flow, temperature, time in production run.Promote stable, the coordination of production procedure overall operation and serialization, high efficiency, reach and improve iron and steel enterprise's production procedure resource efficiency, energy efficiency and energy-saving and cost-reducing purpose.At present, people to the operation of new generation and big steelworks with in producing existing problem also understand fully, can carry out profound research to it more easily by setting up a kind of system that can simulate the following new generation and big steelworks condition of production.For over ten years, computer simulation technique is widely used in iron and steel production, and iron and steel enterprise can utilize the quick and efficient of computing machine aborning, sets up the real-time simulation management system production is simulated and information processing, makes the production management optimization.Based on this, we have set up the realistic model of a blast furnace-converter sector " tank on earth " interface model analogue system by computer simulation software, by emulation experiment, studied the impact on some performance indicators of blast furnace-converter sector " tank on earth " interface model of best distribution that arrival rate that different tap a blast furnace time and converter smelting cycle, hot-metal bottles enter system obeys; The whole process that can show the emulation of blast furnace-converter sector production system simultaneously, thereby can allow the user be well understood to the problem occurred in production run, in time the parameter (corresponding manufacturing parameter) of model is adjusted, realized Logistics System Optimization is configured.The research of this technology successfully has a wide range of applications to production procedure resource efficiency, the energy efficiency of iron and steel enterprise.
Summary of the invention
The object of the invention is to: a kind of optimization method to iron and steel enterprise's blast furnace-converter sector " tank on earth " interface model is provided.The present invention has and reduces the improper stand-by period of hot-metal bottle in transportation in blast furnace-converter sector " tank on earth " interface model to reduce the characteristics of the temperature drop of molten iron in transportation, thereby relax the finishing temperature that molten iron enters converter, have influence on whole production efficiency, the energy efficiency of iron and steel flow process.Can be widely used in the optimization of the optimal design of ironmaking and steel-making interface technology and general layout.
The present invention to the technical scheme of the optimization method of iron and steel enterprise's blast furnace-converter sector " tank is on earth " interface model is:
The method is by computer server, display, Various types of data collector, input keyboard, power supply and outlet line form, adopt computer simulation software to set up blast furnace-converter sector " tank on earth " interface model computer simulation model, concrete steps are: (1) at first sets up the physical model of blast furnace-converter sector " tank on earth " interface model according to the blast furnace-converter sector interface model of iron and steel enterprise's reality, and carries out the static collection of field data;
(2) data that obtain collection in worksite are processed and analyzed, utilize computer simulation software to set up the Visual calculation machine realistic model of blast furnace-converter sector " tank on earth " interface model, data after analyzing are used for to computer simulation model, with the practical condition of simulation iron and steel enterprise blast furnace-converter sector;
(3) utilize the system element of computer simulation software definition blast furnace-converter sector " tank on earth " interface model visual simulation system, set up the Visualization Model structural drawing according to " tank on earth " structure of interface model and the layout at each station scene, can clearly find out the mutual relationship between each entity simultaneously;
(4) utilize computer simulation software to carry out visual setting to the structural model of blast furnace-converter sector " tank on earth " interface model, comprising element visual setting and detail setting;
(5) the constructed Visual calculation machine realistic model from simulation run, report by gained is compared to simulation result, analyze and affect " bottleneck " of this production run factor and cause the cumulative reason occurred of hot-metal bottle stand-by period before converter, propose the countermeasure of head it off, instruct the work of actual schedule personnel scientific arrangement production scheduling.
Visual setting described in step (4) comprises element visual setting and detail setting, the unit of the visual design have converts iron bag (part), be subject to iron (machine), convert iron (machine), weigh or examine bag (machine), blast furnace (buffer), converter (buffer), carrier chain 1 (buffer), carrier chain 2 (buffer), carrier chain 3 (buffer), integration (variable), time series (timeseries), detail setting comprises the logical relation between this model definition basic parameter and each element, to the process-cycle of each machine, enter rule, send the rule etc. the parameter setting.
The countermeasure of described head it off is:
(1) meeting blast furnace, the coordination of converter rhythm of production, blast furnace, converter are corresponding and be subject under prerequisite that the iron flask capacity is equal with converter capacity one by one, blast furnace casting time and converter smelting cycle equate, that is: converter smelting cycle=blast furnace casting time/N, and wherein N is the quantity that is subject to iron flask;
(2) reduce the improper stand-by period of hot-metal bottle in transportation to reduce the temperature drop of molten iron in transportation;
(3) choosing the best distribution that arrival rate that hot-metal bottle enters system obeys is Poisson distribution, for the kind countermeasure changed, by revising parameter, reaches and relaxes cumulative purpose of stand-by period before converter.
In iron and steel enterprise's blast furnace-converter sector " tank on earth " production model, when production is normally carried out, along with hot-metal bottle constantly, approximate rule molten iron is transported to converter from blast furnace, the stand-by period of hot-metal bottle before converter can add up along with the cumulative of time.When the cumulative time is increased to a certain degree, can badly influence the hot metal temperature drop of blast furnace-converter sector production run, even can cause production normally not move because the temperature drop in hot-metal bottle is excessive.In addition, reason due to the cumulative time, can cause hot-metal bottle before converter, slack tank queuing phenomena occurs before being back to blast furnace, cause transportation route to stop up, " three the is long " phenomenon that occur that the Molten Iron Transportation as ready time is long, it is long between timing to fall, wastes time in transit long has to enable mixed iron blast sometimes temporarily, " tank on earth " pattern is changed into to " be subject to iron flask-mixed iron blast-convert iron bag " pattern, finally cause the molten iron temperature loss serious, whole production procedure energy consumption increases considerably.
In order to improve in iron and steel enterprise's blast furnace-converter sector " tank on earth " interface model the improper waits for too long of hot-metal bottle freely do not caused due to the hot-metal bottle operation, we propose by the actual blast furnace-converter sector production run of emulation of the computer software and find out the solution of the problems referred to above.Key step is as follows: (1) at first sets up the physical model of blast furnace-converter sector " tank on earth " interface model according to the blast furnace-converter sector interface model of iron and steel enterprise's reality, and carries out the static collection of field data; (2) data that obtain collection in worksite are processed and analyzed, utilize computer simulation software to set up the Visual calculation machine realistic model of blast furnace-converter sector " tank on earth " interface model, data after analyzing are used for to computer simulation model, with the practical condition of simulation iron and steel enterprise blast furnace-converter sector; (3) utilize the system element of computer simulation software definition blast furnace-converter sector " tank on earth " interface model visual simulation system, set up the Visualization Model structural drawing according to " tank on earth " structure of interface model and the layout at each station scene, can clearly find out the mutual relationship between each entity simultaneously; (4) utilize computer simulation software to carry out visual setting to the structural model of blast furnace-converter sector " tank on earth " interface model, comprising element visual setting and detail setting.The unit of the visual design have converts iron bag (part), be subject to iron (machine), convert iron (machine), weigh or examine bag (machine), blast furnace (buffer), converter (buffer), carrier chain 1 (buffer), carrier chain 2 (buffer), carrier chain 3 (buffer), integration (variable), time series (timeseries), detail setting comprises the logical relation between this model definition basic parameter and each element, to process-cycle of each machine, enter rule, send the parameter setting of rule etc.; (5) the constructed Visual calculation machine realistic model of simulation run, report by gained is analyzed simulation result, draw and affect " bottleneck " of this production run factor and cause the cumulative reason occurred of hot-metal bottle stand-by period before converter, propose the countermeasure of head it off.Simultaneously, in actual blast furnace-converter " tank on earth " interface model system, this kind of method can be applied in the analysis and research work of similar problem easily.
The invention has the beneficial effects as follows: 1, shortened greatly the front stand-by period of converter, solved converter front stand-by period " additive effect "; 2, the effect that has better minimizing hot metal temperature drop, be conducive to improve molten iron and enter the converter temperature, reaches the effect of further reduction energy consumption; 3, improved the production efficiency of the whole process of ironmaking-make steel, what be conducive to that follow-up steelmaking process controls is stable.
The accompanying drawing explanation
Fig. 1 is blast furnace-converter sector of the present invention " tank on earth " pattern physical model structure figure;
The structural drawing that Fig. 2 is blast furnace-converter sector of the present invention " tank on earth " interface model Visualization Model;
Fig. 3 does not optimize front report statistics figure by the model of being set up of the present invention;
Fig. 4 is the report statistics figure after optimization of the present invention.
Embodiment
Further illustrate flesh and blood of the present invention below in conjunction with accompanying drawing with example, but content of the present invention is not limited to this.
Embodiment 1: at first blast furnace-converter sector " tank on earth " the interface model related data of certain iron and steel enterprise's reality is carried out to the static collection in scene, such as blast furnace casting time, converter smelting cycle, haulage time, weigh or examine the bag time, several tanks of hot-metal bottle one car arrive/leave, arrive/statisticss such as time departure interval, set up blast furnace-converter sector " tank on earth " interface model physical model, as Fig. 1.Then the data of the collection in worksite that obtains are processed and analyzed, utilize computer simulation software to set up the computer simulation model of blast furnace-converter sector " tank on earth " interface model, by the data after analyzing for computer simulation model, with the practical condition of simulation iron and steel enterprise blast furnace-converter sector; Utilize the system element of computer simulation software definition blast furnace-converter sector " tank on earth " interface model analogue system, in Table 1.Set up the Visualization Model structural drawing as Fig. 2 according to " tank on earth " structure of interface model and the layout at each station scene, can clearly find out the mutual relationship between each entity simultaneously.Utilize computer simulation software to carry out visual setting to the structural model of blast furnace-converter sector " tank on earth " interface model, comprising element visual setting and detail setting.The unit of the visual design have converts iron bag (part), be subject to iron (machine), convert iron (machine), weigh or examine bag (machine), blast furnace (buffer), converter (buffer), carrier chain 1 (buffer), carrier chain 2 (buffer), carrier chain 3 (buffer), integration (variable), time series (timeseries), detail setting comprises some process-cycles to each machine, enters rule, sends rule.The constructed computer simulation model of simulation run, simulation result is analyzed and compared with the actual production data by the report of gained, analyze and affect " bottleneck " of this production run factor and cause the cumulative reason occurred of hot-metal bottle stand-by period before converter, draw the countermeasure of head it off: (a) meeting blast furnace, the coordination of converter rhythm of production, blast furnace, converter are corresponding and be subject under prerequisite that the iron flask capacity is equal with converter capacity one by one, and blast furnace casting time and converter smelting cycle equate.That is: converter smelting cycle=blast furnace casting time/N (N is the quantity that is subject to iron flask) (2) reduces the improper stand-by period of hot-metal bottle in transportation to reduce the temperature drop of molten iron in transportation.(3) choosing the best distribution that arrival rate that hot-metal bottle enters system obeys is Poisson distribution.For the above-mentioned countermeasure of improving, discovery is meeting blast furnace, the coordination of converter rhythm of production, blast furnace, converter are corresponding and be subject to converter smelting cycle and the hot-metal bottle in blast furnace and converter adjustment model under prerequisite that the iron flask capacity is equal with converter capacity to enter the best distribution that the system arrival rate is obeyed one by one, can reach and relax the purpose that stand-by period before converter is cumulative, reduce the Molten Iron Transportation temperature losses of the process.Specifically see and optimize front and back report statistics figure as shown in Figure 3, Figure 4.Simultaneously, in actual blast furnace-converter " tank on earth " interface model system, this kind of method can be applied in the analysis and research work of similar problem easily.
Table 1 model element definition list
| Element term | Type | Quantity |
| Convert the iron bag | Parts | 1 |
| Integration | Parts | 1 |
| Blast furnace | Buffering | 1 |
| Converter | Buffering | 1 |
| Be subject to iron | Machine | 1 |
| Convert iron | Machine | 1 |
| Weigh, examine bag | Machine | 1 |
| Carrier chain 1 | Travelling belt | 1 |
| Carrier chain 2 | Travelling belt | 1 |
| Carrier chain 3 | Travelling belt | 1 |
| Integration | Variable (type: integer) | 1 |
| The team leader | Time series | 1 |
The present invention is applicable to all optimization that relates to blast furnace-converter sector " tank on earth " interface model.Can effectively reduce into the stand-by period before converter on the one hand, reduce the loss, can reduce on the other hand the temperature drop of whole production run, improve and finally enter the converter temperature, reach and improve production run efficiency, energy-saving and cost-reducing purpose.
Claims (1)
1. the optimization method to iron and steel enterprise's blast furnace-converter sector " tank on earth " interface model, it is characterized in that: the method is by computer server, display, data acquisition unit, input keyboard, power supply and outlet line form, adopt computer simulation software to set up blast furnace-converter sector " tank is on earth " interface model computer simulation model, concrete steps are:
(1) at first according to the blast furnace-converter sector interface model of iron and steel enterprise's reality, set up the physical model of blast furnace-converter sector " tank on earth " interface model, and carry out the static collection of field data;
(2) data that obtain collection in worksite are processed and analyzed, utilize computer simulation software to set up the Visual calculation machine realistic model of blast furnace-converter sector " tank on earth " interface model, data after analyzing are used for to computer simulation model, with the practical condition of simulation iron and steel enterprise blast furnace-converter sector;
(3) utilize the system element of computer simulation software definition blast furnace-converter sector " tank on earth " interface model visual simulation system, set up the Visualization Model structural drawing according to " tank on earth " structure of interface model and the layout at each station scene, can clearly find out the mutual relationship between each entity simultaneously;
(4) utilize computer simulation software to carry out visual setting to the structural model of blast furnace-converter sector " tank on earth " interface model;
(5) the constructed Visual calculation machine realistic model from simulation run, report by gained is compared to simulation result, analyze the factor that affects this production run and cause the cumulative reason occurred of hot-metal bottle stand-by period before converter, propose the countermeasure of head it off, instruct the work of actual schedule personnel scientific arrangement production scheduling;
Visual setting described in step (4) comprises element visual setting and detail setting, the unit of the visual design have convert the iron bag, be subject to iron, convert iron, weigh or examine bag, blast furnace, converter, carrier chain 1, carrier chain 2, carrier chain 3, integration, time series, detail setting comprises the logical relation between this model definition basic parameter and each element, to process-cycle of each machine, enter rule, send regular parameter setting;
The countermeasure of the described head it off of step (5) is:
1) meeting blast furnace, the coordination of converter rhythm of production, blast furnace, converter are corresponding and be subject under prerequisite that the iron flask capacity is equal with converter capacity one by one, blast furnace casting time and converter smelting cycle equate, that is: converter smelting cycle=blast furnace casting time/N, and wherein N is the quantity that is subject to iron flask;
2) reduce the improper stand-by period of hot-metal bottle in transportation to reduce the temperature drop of molten iron in transportation;
3) choosing the best distribution that arrival rate that hot-metal bottle enters system obeys is Poisson distribution, for the kind countermeasure changed, by revising parameter, reaches and relaxes cumulative purpose of stand-by period before converter.
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| CN102722762B (en) * | 2011-12-29 | 2015-08-26 | 昆明理工大学 | Blast furnace/converter sector queuing system resolves emulation mode |
| CN103924800B (en) * | 2013-01-13 | 2018-08-21 | 山东省冶金设计院股份有限公司 | Molten iron quick transportation method and equipment combination between molten iron molten steel interface |
| CN108733094B (en) * | 2018-05-23 | 2021-12-28 | 山东钢铁集团日照有限公司 | Converter charging molten iron amount deviation control method and implementation system |
| CN112464445B (en) * | 2020-11-10 | 2022-08-12 | 中冶赛迪工程技术股份有限公司 | Automatic simulation and optimization system for railway transportation of molten iron |
| CN113836746B (en) * | 2021-10-13 | 2024-03-29 | 南京澳博工业智能科技研究院有限公司 | Flow simulation method for optimizing charging in stable blast furnace |
| CN114635004A (en) * | 2022-03-14 | 2022-06-17 | 南京钢铁股份有限公司 | Method for shortening smelting period of converter |
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| CN1556486A (en) * | 2003-12-31 | 2004-12-22 | 冶金自动化研究设计院 | Integrated iron and steel enterprise production process on line planning and controlling system and method |
| CN101833322A (en) * | 2010-05-19 | 2010-09-15 | 昆明理工大学 | Expert system and control method applied to blast furnace-converter sector production scheduling process control of steel enterprises |
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| CN1556486A (en) * | 2003-12-31 | 2004-12-22 | 冶金自动化研究设计院 | Integrated iron and steel enterprise production process on line planning and controlling system and method |
| CN101833322A (en) * | 2010-05-19 | 2010-09-15 | 昆明理工大学 | Expert system and control method applied to blast furnace-converter sector production scheduling process control of steel enterprises |
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