JP2002003909A - Distribution system for molten iron and method for controlling distribution of molten iron - Google Patents
Distribution system for molten iron and method for controlling distribution of molten ironInfo
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- JP2002003909A JP2002003909A JP2000190666A JP2000190666A JP2002003909A JP 2002003909 A JP2002003909 A JP 2002003909A JP 2000190666 A JP2000190666 A JP 2000190666A JP 2000190666 A JP2000190666 A JP 2000190666A JP 2002003909 A JP2002003909 A JP 2002003909A
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- hot metal
- amount
- steelmaking
- molten iron
- steelmaking process
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、溶銑工程と製鋼工
程および鋳銑工程を有する一貫製鉄所における溶銑物流
システムおよびその溶接物流制御方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot metal logistics system in an integrated steel mill having a hot metal process, a steel making process, and a cast iron process, and a method for controlling the welding flow of the same.
【０００２】[0002]
【従来の技術】高炉より出銑された溶銑は一般にトピー
ドと呼ばれる溶銑鍋に受け入れられて製鋼工場あるいは
鋳銑工場へ運搬される。そのため、溶銑鍋の運行計画が
立てられ、その計画に従って合理的な操業を実現しよう
としている。例えば、特開平４−２８０９０８号公報で
は、現時刻での各トピード稼働状況、高炉出銑計画およ
び製鋼での溶銑使用計画から、現時刻以後のトピード稼
働状況を予測して各トピードの運行スケジュールを作成
し、トピード台数が基準台数か否かを判定し、高炉出銑
速度調整の前準備を行い、高炉出銑速度の調整が可能な
場合にのみ、トピード台数が基準台数となるように、高
炉出銑速度を調整し、出銑計画の変更を繰り返すという
溶銑鍋の運行管理方法を提案している。2. Description of the Related Art Hot metal that has been tapped from a blast furnace is received in a hot metal pot generally called topeed and transported to a steelmaking plant or a cast iron plant. For this reason, an operation plan for the hot metal ladle has been prepared, and attempts are being made to achieve a rational operation in accordance with the plan. For example, in Japanese Unexamined Patent Publication No. Hei 4-280908, the operation schedule of each torpedo is predicted by predicting the operation status of the torpedo after the current time from the operation status of each torpedo at the current time, the blast furnace tapping plan and the hot metal use plan in steelmaking. It is determined whether or not the number of torpedoes is the reference number, and preparations are made for the adjustment of the blast furnace tapping speed, and only when the blast furnace tapping speed can be adjusted, the blast furnace We propose a method for managing the operation of a hot metal ladle by adjusting the tapping speed and repeatedly changing the tapping schedule.
【０００３】しかしながら、この従来技術では、主とし
て製鋼工程での溶銑在庫量が大幅に変動するのを防ぐ目
的で運行計画が立てられているため、いわゆる「はんぱ
鍋」と称する鍋の基準量に満たない溶銑が出じた場合の
取扱いについては触れられていない。[0003] However, in this prior art, since the operation plan is made mainly for the purpose of preventing the molten iron stock in the steel making process from largely fluctuating, the reference amount of the so-called "Hamppo pot" is set. It does not mention how to handle hot metal that is less than.
【０００４】特に、最近の大型高炉では通常、複数の出
銑口を有し常時いずれかの出銑口から出銑を行う連続出
銑方式がとられている。一方、出銑された溶銑を消費す
る製鋼工程においてはバッチ的に吹錬が行われるため、
製鋼工程でバッチの間隔が変動すると、一時的に製鋼工
程での溶銑在庫量が増加し、製鋼工程に溶銑を受け入れ
るまでに時間がかかり、受け入れ時の溶銑温度が低下す
るという問題が発生する。前記従来技術は、以上のよう
に製鋼工程において溶銑在庫量が一時的に増加しそうな
場合には、高炉の操業条件を変更して出銑速度を調整す
ることにより、製鋼工程での溶銑在庫量の増加、および
それに伴う製鋼工程受け入れ時の溶銑温度の低下を回避
しようとするものである。In particular, a recent large blast furnace usually employs a continuous tapping system in which a plurality of tap holes are provided and tapping is always performed from any of the tap holes. On the other hand, in the steelmaking process that consumes hot metal that has been tapped, since blowing is performed in batches,
If the interval between batches fluctuates in the steelmaking process, the amount of hot metal stock in the steelmaking process temporarily increases, and it takes a long time to receive hot metal in the steelmaking process, causing a problem that the temperature of the hot metal at the time of receiving decreases. As described above, when the hot metal inventory is likely to temporarily increase in the steelmaking process as described above, the hot metal inventory in the steelmaking process is adjusted by changing the blast furnace operating conditions and adjusting the tapping speed. The purpose of the present invention is to avoid the increase in the temperature of the hot metal at the time of accepting the steelmaking process and the accompanying decrease in the hot metal temperature.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、高炉の
操業条件を変更することは炉況不調を生じさせる可能性
があり、溶銑在庫調整のための高炉操業条件の変更は好
ましくない。また、前述のように「はんぱ鍋」が生じた
場合には、はんぱ鍋はそのまま処理できないので、次の
高炉出銑をまって、鍋の基準量を満たしてから予備処理
工程、さらには製鋼工程へまわすといった取扱いがなさ
れていた。しかしながら、このような取扱いでは溶銑の
温度が低下してしまうので、十分に良質の製鋼は行えな
い場合がある。However, changing the operating conditions of the blast furnace may cause a malfunction in the furnace, and it is not preferable to change the operating conditions of the blast furnace for adjusting the hot metal inventory. In addition, as described above, when a `` Hampo pot '' occurs, the Humper pot cannot be processed as it is, so the next blast furnace tapping is stopped, and the pre-treatment step is performed after the reference amount of the pot is satisfied. Furthermore, handling such as turning to a steel making process was performed. However, such a handling lowers the temperature of the hot metal, so that it may not be possible to produce sufficiently high-quality steel.
【０００６】本発明は、前記のような問題点を解決する
ためのなされたもので、はんぱ鍋の取扱いをも含む合理
的・総合的な溶銑物流システムを構築し、もって高炉操
業条件を変更することなく、製鋼工程の溶銑在庫量を一
定に保ち、かつ、製鋼工程での溶銑受け入れ時の溶銑温
度低下を回避する溶銑物流システムおよび溶銑物流制御
方法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has been developed to construct a rational and comprehensive hot metal distribution system including handling of a stirrer pot, thereby reducing blast furnace operating conditions. It is an object of the present invention to provide a hot metal distribution system and a hot metal flow control method that keep a constant amount of hot metal inventory in a steelmaking process without change and avoid a drop in hot metal temperature when receiving hot metal in the steelmaking process.
【０００７】[0007]
【課題を解決するための手段】本発明に係る溶銑物流シ
ステムは、高炉と、溶銑予備処理設備と、製鋼工場と、
鋳銑工場を備え、これら各設備、各工場間を移動する複
数の溶銑鍋を備えた製鉄所において、ある製鋼工程にお
ける溶銑在庫量を予測する手段と、ある溶銑鍋を搬入す
ることにより前記手段に基づく溶銑在庫量があらかじめ
定められた溶銑在庫基準量より多くなるか否かを判定す
る手段と、溶銑在庫量が溶銑在庫基準量より多くなると
きには、その溶銑鍋を鋳銑工程または前記ある製鋼工程
以外の他の製鋼工程に振り向ける手段とを含むことを特
徴とするものである。The hot metal distribution system according to the present invention comprises a blast furnace, a hot metal pretreatment facility, a steel mill,
In a steel mill equipped with a cast iron factory, each of these facilities and a plurality of hot metal pots moving between each factory, means for predicting hot metal inventory in a certain steelmaking process, and said means by carrying in a certain hot metal pot Means for determining whether or not the hot metal inventory based on the hot metal inventory is greater than a predetermined hot metal inventory reference amount, and when the hot metal inventory amount is greater than the hot metal inventory standard amount, the hot metal ladle is placed in the casting iron process or the certain steelmaking process. Means for diverting to a steelmaking process other than the process.
【０００８】ここで、鋳銑工程とは、溶銑を製鋼工程に
投入することなく凝固させる工程である。例えば、鋳鉄
製品原料としてのインゴットを鋳造する工程をいう。本
来的に鋳銑工程は、製鋼工程での溶銑在庫調整を行って
高炉操業条件の変更防止を行うために用いられる工程で
はない。鋳銑工程で生成された製品は、独自の需要を持
っている。本発明では、この鋳銑工程を一種の調整弁に
して製鋼工程の溶銑在庫調整を行うものである。すなわ
ち、製鋼工程における溶銑在庫量を予測する手段と、溶
銑在庫量があらかじめ定められた溶銑在庫基準量より多
いか否かを判定する手段と、溶銑在庫量が溶銑在庫基準
量より多いときには、その溶銑鍋を鋳銑工程または当該
製鋼工程以外の他の製鋼工程に振り向ける手段とを含む
溶銑物流制御手段を有する溶銑物流システムとすること
により、高炉操業条件を変更することなく、製鋼工程の
溶銑在庫量を一定に保つことが可能となり、製鋼工程で
の溶銑受け入れ時の溶銑温度低下幅を低減させることが
可能となる。また、これにより安定した高炉操業を実現
することができる。[0008] Here, the casting iron process is a process in which molten iron is solidified without being introduced into a steelmaking process. For example, it refers to a step of casting an ingot as a raw material of a cast iron product. Originally, the cast iron process is not a process used to adjust the hot metal inventory in the steelmaking process to prevent changes in blast furnace operating conditions. Products produced in the casting iron process have their own demands. In the present invention, this cast iron process is used as a kind of control valve to adjust the hot metal inventory in the steel making process. That is, means for predicting hot metal inventory in the steelmaking process, means for determining whether hot metal inventory is greater than a predetermined hot metal inventory reference amount, and means for determining whether hot metal inventory is greater than hot metal inventory reference amount. By providing a hot metal logistics system having a hot metal logistics control means including means for diverting a hot metal ladle to a casting iron process or another steelmaking process other than the steelmaking process, the hot metal of the steelmaking process can be changed without changing the blast furnace operating conditions. It is possible to keep the stock constant, and it is possible to reduce the range of decrease in hot metal temperature when receiving hot metal in the steelmaking process. In addition, a stable blast furnace operation can be realized.
【０００９】本発明の溶銑物流システムは、溶銑在庫量
が溶銑在庫基準量より多くなる場合に、その溶銑鍋の受
銑量が所定量未満か否かを判定し、所定量未満のときに
はその溶銑鍋の鋳銑工程への受け入れを判定する手段
と、所定量未満でないときにはその溶銑鍋の当該製鋼工
程以外の他の製鋼工程への受け入れを判定する手段とを
含むものである。The hot metal distribution system of the present invention determines whether or not the amount of hot metal received by a hot metal pot is less than a predetermined amount when the hot metal inventory amount exceeds the standard hot metal inventory amount. It includes means for judging acceptance of the pot into the casting iron process, and means for judging acceptance of the hot metal pot into another steelmaking process other than the steelmaking process when the amount is not less than the predetermined amount.
【００１０】いわゆる「はんぱ鍋」であるか否かを判定
することにより、はんぱ鍋である場合には全て鋳銑工程
へ搬送する。このようなはんぱ鍋の取扱いによって、製
鋼工程において溶銑品質のバラツキが大きくなる可能性
を未然に防止することができ、はんぱ鍋を製鋼工程への
ルートから外すことで溶銑物流制御が容易となる。[0010] By judging whether or not it is a so-called "Hamppan", if it is a Hamppan, it is all conveyed to the casting iron process. By handling such a hot pot, it is possible to prevent the possibility of large variations in hot metal quality in the steel making process, and to control hot metal flow by removing the hot pot from the route to the steel making process. It will be easier.
【００１１】また、本発明の溶銑物流システムにおい
て、溶銑在庫量の予測手段は、任意の時刻における高炉
の出銑情報、製鋼工程の精錬計画、溶銑鍋の位置情報、
溶銑予備処理設備の稼働状況の情報より任意時間後の製
鋼工程毎の溶銑在庫量を予測するものである。Further, in the hot metal distribution system of the present invention, the means for predicting the hot metal inventory amount includes the tapping information of the blast furnace at any time, the refining plan of the steelmaking process, the position information of the hot metal pot,
The present invention predicts the amount of hot metal stock for each steelmaking process after an arbitrary time from information on the operating status of the hot metal pretreatment facility.
【００１２】溶銑鍋の牽引用の機関車がある場合には機
関車の位置情報も含まれる。溶銑在庫量の予測手段は、
これらの情報をもとに、製鋼工程毎に現時刻より任意の
時間後の溶銑在庫量を計算する。また、物流シミュレー
ションを行った上で計算する。If there is a locomotive tow the hot metal pot, the position information of the locomotive is also included. The means for predicting hot metal inventory is:
Based on this information, the amount of hot metal stock at any time after the current time is calculated for each steelmaking process. The calculation is performed after performing a physical distribution simulation.
【００１３】本発明に係る溶銑物流制御方法は、溶銑工
程と製鋼工程と鋳銑工程を有する製鉄所において、ある
溶銑鍋を製鋼工程に搬入する場合に、その製鋼工程の溶
銑在庫量を予測し、その溶銑在庫量があらかじめ定めら
れた溶銑在庫基準量より多いときには、当該溶銑鍋を鋳
銑工程へ搬送することを特徴とするものである。The hot metal flow control method according to the present invention predicts a hot metal inventory in a steelmaking process when a hot metal ladle is carried into a steelmaking process in an ironworks having a hot metal process, a steelmaking process, and a cast iron process. When the hot metal inventory is larger than a predetermined hot metal inventory reference amount, the hot metal ladle is conveyed to a casting iron process.
【００１４】製鋼工程が一つの場合は、溶銑在庫基準量
より多いときには全て溶銑鍋を鋳銑工程へ搬送すること
になる。In the case of one steel making process, when the hot metal inventory is larger than the reference amount, the hot metal ladle is all conveyed to the cast iron process.
【００１５】また、本発明の溶銑物流制御方法は、複数
の製鋼工程を有し、ある溶銑鍋をある製鋼工程に搬入す
る場合において、その製鋼工程の溶銑在庫量が溶銑在庫
基準量より多いと予想されるときには、他の製鋼工程へ
の搬入が可能か否かを製鋼工程毎に判定し、いずれの他
の製鋼工程においても受け入れが不能である場合に、当
該溶銑鍋を鋳銑工程へ搬送するものである。Further, the method for controlling hot metal flow of the present invention has a plurality of steel making processes. When a certain hot metal ladle is carried into a certain steel making process, if the hot metal stock in the steel making process is larger than the standard hot metal stock. When anticipated, it is determined for each steelmaking process whether it is possible to carry it into another steelmaking process, and if it cannot be accepted in any other steelmaking process, the hot metal ladle is transferred to the cast iron process. Is what you do.
【００１６】複数の製鋼工程がある場合には、製鋼工程
毎に溶銑在庫量が溶銑在庫基準量より多いか否かを判定
し、どの製鋼工程においても受け入れ不能であるときに
のみ、当該溶銑鍋を鋳銑工程へ搬送する。製鋼工程への
搬入を優先するものである。In the case where there are a plurality of steelmaking processes, it is determined whether or not the hot metal inventory is larger than the standard hot metal inventory for each steelmaking process. To the casting iron process. Priority is given to carrying in the steelmaking process.
【００１７】また、本発明の溶銑物流制御方法は、溶銑
工程と製鋼工程と鋳銑工程を有する製鉄所において、あ
る溶銑鍋の受銑量が所定量未満か否かを判定し、その受
銑量が所定量未満であるときには、当該溶銑鍋を鋳銑工
程へ搬送するものである。高炉出銑終了時に生じるよう
なはんぱ鍋は全て鋳銑工程へ搬送する。[0017] Further, the method of controlling hot metal flow of the present invention determines whether or not the amount of received hot metal in a hot metal ladle is less than a predetermined amount in an ironworks having a hot metal process, a steelmaking process, and a cast iron process. When the amount is less than the predetermined amount, the hot metal pot is transported to a casting iron process. All the pots that may occur at the end of the blast furnace tapping are transported to the casting iron process.
【００１８】[0018]
【発明の実施の形態】以下、本発明の実施の形態を図面
を用いて説明する。図１は本発明の溶銑物流システムの
ブロック図、図２は本発明の溶銑物流制御方法のフロー
チャートである。一貫製鉄所は、高炉１、溶銑予備処理
設備２、製鋼工場３、および鋳銑工場４からなり、複数
の溶銑鍋（トピード）５およびこれを牽引する機関車６
が各設備、各工場間を移動し、高炉１より出銑された溶
銑を運搬するようになっている。この溶銑物流システム
をプロセスコンピュータ７によりコントロールしてい
る。８はデータベースであり、製鋼工程毎の溶銑在庫基
準量、溶銑鍋の溶銑基準量、溶銑鍋および機関車の位置
情報などが格納されている。また、プロセスコンピュー
タ７には、それぞれの制御装置（コンピュータ等）よ
り、高炉出銑情報、溶銑予備処理状況、製鋼溶銑在庫状
況、鋳銑状況などが刻々と知らされている。溶銑の搬送
先はプロセスコンピュータ７により通知される。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a hot metal distribution system of the present invention, and FIG. 2 is a flowchart of a hot metal distribution control method of the present invention. The integrated steelworks comprises a blast furnace 1, a hot metal pretreatment facility 2, a steel mill 3, and a cast iron factory 4, and includes a plurality of hot metal pots (toped) 5 and a locomotive 6 for pulling the hot metal.
Moves between each facility and each factory, and transports hot metal that has been tapped from the blast furnace 1. This hot metal distribution system is controlled by the process computer 7. Reference numeral 8 denotes a database which stores a standard amount of hot metal inventory, a standard amount of hot metal of a hot metal pot, position information of a hot metal pot and a locomotive for each steelmaking process. In addition, the process computer 7 is constantly informed of blast furnace tapping information, hot metal pre-treatment status, hot metal stock status, cast iron status, etc. from the respective control devices (computers and the like). The destination of the hot metal is notified by the process computer 7.
【００１９】溶銑予備処理設備２における予備処理工程
は、溶銑工程の主要部をなすものであり、主として溶銑
中のリン、硫黄等を除去する脱硫処理を行うものであ
る。製鋼工場３での製鋼工程は、転炉等による精錬や、
連続鋳造を行う工程である。鋳銑工場４での鋳銑工程
は、例えば、鋳鉄製品原料としてのインゴットを鋳造す
る工程である。また、溶銑工程、製鋼工程、鋳銑工程は
通常、それぞれ複数のラインで構成されているが、製鋼
工程、鋳銑工程がそれぞれ一つの場合でも本発明を適用
し得る。The pretreatment process in the hot metal pretreatment facility 2 is a main part of the hot metal process, and mainly performs a desulfurization process for removing phosphorus, sulfur and the like in the hot metal. The steelmaking process in the steelmaking factory 3 includes refining by a converter and the like,
This is a step of performing continuous casting. The casting iron process in the casting iron factory 4 is, for example, a step of casting an ingot as a raw material of a cast iron product. Further, each of the hot metal process, the steel making process, and the cast iron process is generally constituted by a plurality of lines, but the present invention can be applied to the case where each of the steel making process and the cast iron process is one.
【００２０】高炉１より出銑された溶銑を運搬する溶銑
鍋５は、高炉１から溶銑予備処理設備２へ搬送する過程
においてその重量が計測されるようになっている。これ
によって、はんぱ鍋は鋳銑工程へ搬送されることにな
る。また、後述するように製鋼工程への搬入が不能な溶
銑鍋も鋳銑工程へ搬送される。The weight of the hot metal ladle 5 for transporting hot metal from the blast furnace 1 is measured during the process of transporting the hot metal from the blast furnace 1 to the hot metal pretreatment facility 2. As a result, the pot is transferred to the casting iron process. Further, as described later, a hot metal pot that cannot be carried into the steelmaking process is also carried to the casting iron process.
【００２１】さらに図２を参照して、本発明の処理フロ
ーを説明する。この処理フローは溶銑物流制御手段であ
るプロセスコンピュータ７にて実行される。The processing flow of the present invention will be described with reference to FIG. This processing flow is executed by the process computer 7 which is a hot metal distribution control means.
【００２２】まず、ステップＳ１において、初期状態を
設定する。この段階では、管理ファイルＡから、各溶銑
鍋５および機関車６の位置情報並びに各溶銑予備処理設
備２の稼働状況を読み込み設定する。First, in step S1, an initial state is set. At this stage, the position information of each hot metal pot 5 and the locomotive 6 and the operation status of each hot metal pretreatment facility 2 are read and set from the management file A.
【００２３】次に、ステップＳ２において、製鋼工程毎
の溶銑在庫量を予測する。この時、管理ファイルＢか
ら、高炉１の出銑情報、各製鋼工程の精錬計画、高炉１
と各予備処理工程間の搬送時間、各予備処理工程の所要
時間を読み込み、さらに各溶銑鍋５および機関車６の位
置情報、各溶銑予備処理設備２の稼働状況をもとに、現
時刻から任意の時間後における物流シミュレーションを
行い、現時刻から任意の時間後における各製鋼工程の溶
銑在庫量を計算する。したがって、この計算により、あ
る溶銑鍋の溶銑を受け入れた結果の溶銑在庫量が求ま
る。Next, in step S2, the amount of hot metal stock for each steelmaking process is predicted. At this time, from the management file B, the tapping information of the blast furnace 1, the refining plan of each steelmaking process, the blast furnace 1
And the time required for each pre-processing step and the time required for each pre-processing step, and based on the position information of each hot metal pot 5 and the locomotive 6 and the operation status of each hot metal pre-processing facility 2, A logistics simulation after an arbitrary time is performed, and a stock of hot metal in each steelmaking process at an arbitrary time after the current time is calculated. Therefore, this calculation yields the hot metal inventory as a result of receiving hot metal from a hot metal pot.
【００２４】そして、それぞれの製鋼工程について、前
記により計算された溶銑在庫量と管理ファイルＣより読
み込まれた溶銑在庫基準量を比較し（ステップＳ３）、
ある製鋼工程の溶銑在庫量がその製鋼工程について定め
られた溶銑在庫基準量より多い場合にはステップＳ４に
移行し、それ以外の場合は溶銑在庫量の過不足はないた
め、そのままこの処理フローを終了する。すなわち、ス
テップＳ４に移行するのは、上記ある溶銑鍋を受け入れ
ることで、溶銑在庫量が溶銑基準量を超える場合であ
る。Then, for each steelmaking process, the calculated hot metal inventory amount is compared with the hot metal inventory reference amount read from the management file C (step S3).
If the hot metal inventory of a certain steelmaking process is larger than the standard hot metal inventory defined for the steelmaking process, the process proceeds to step S4. Otherwise, there is no excess or shortage of the hot metal inventory. finish. That is, the process proceeds to step S4 when the hot metal stock exceeds the hot metal reference amount by accepting the certain hot metal pot.
【００２５】次に、ステップＳ４においては、溶銑鍋の
受銑量が基準量を満たしているかどうかを、管理ファイ
ルＤより読み込まれた溶銑鍋の溶銑基準量と比較して判
断する。溶銑鍋の受銑量が基準量未満の場合（はんぱ鍋
の場合）にはステップＳ５の処理に移行し、基準量を満
たしている場合にはステップＳ７の処理に移行する。Next, in step S4, it is determined whether or not the amount of hot metal received by the hot metal pot satisfies the reference amount by comparing it with the standard hot metal content of the hot metal pot read from the management file D. If the amount of hot metal received by the hot metal pot is less than the reference amount (in the case of a hot pot), the process proceeds to step S5, and if the amount of the hot metal is satisfied, the process proceeds to step S7.
【００２６】ステップＳ７では、ステップＳ３でその溶
銑鍋がその製鋼工程への受け入れが不可能と判定された
場合であっても、それ以外の他の製鋼工程に受け入れ可
能であるかどうかを判別する。そして、その溶銑鍋の受
け入れが可能な場合には、当該製鋼工程以外の他の製鋼
工程に搬送し処理を終了させる。In step S7, even if it is determined in step S3 that the hot metal pot cannot be accepted in the steelmaking process, it is determined whether or not the hot metal pot can be accepted in other steelmaking processes. . Then, when the hot metal ladle can be received, the hot metal is transferred to another steelmaking process other than the steelmaking process and the process is terminated.
【００２７】ステップＳ５では、ステップＳ４ではんぱ
鍋と判断された場合において、その受銑量（基準量未満
の受銑量）が鋳銑工程に受け入れ可能であるかどうかを
判別する。その溶銑鍋の受け入れが可能な場合には鋳銑
工程へ搬送し処理を終了する（ステップＳ６）。受け入
れが不可能な場合はそのまま処理を終了する。In step S5, when it is determined in step S4 that the pot is a hot pot, it is determined whether or not the amount of received iron (the amount of received iron less than the reference amount) is acceptable in the casting iron process. If the hot metal ladle can be received, it is transferred to the casting iron process and the process is terminated (step S6). If the acceptance is not possible, the process ends.
【００２８】この実施の形態では、製鋼工程の溶銑在庫
量を予測し、その溶銑在庫量があらかじめ定められた溶
銑在庫基準量より多い場合には、その溶銑鍋を鋳銑工程
または当該製鋼工程以外の他の製鋼工程に振り向けるこ
ととしているので、高炉操業条件を変更することなく製
鋼工程の溶銑在庫量を一定に保つことができる。そのた
め、製鋼工程での溶銑受け入れ時の溶銑温度の低下幅を
小さく抑えることができ、安定した高炉操業を実現でき
る。また、その溶銑鍋の当該製鋼工程への受け入れが不
可能な場合であっても、その他の製鋼工程への受け入れ
が可能な場合にはその製鋼工程へ搬入することにしてい
るので、各溶銑工程の溶銑在庫量を一定に調整すること
ができる。そして、いずれの製鋼工程への受け入れも不
可能な場合、およびはんぱ鍋の場合にのみ、その溶銑鍋
を鋳銑工程へ搬入することにしているので、一貫製鉄所
における合理的で円滑な溶銑物流が可能となっている。In this embodiment, the hot metal inventory in the steelmaking process is predicted, and if the hot metal inventory is larger than a predetermined hot metal inventory reference amount, the hot metal ladle is placed in a casting iron process or a process other than the steelmaking process. Therefore, the stock of hot metal in the steel making process can be kept constant without changing the blast furnace operating conditions. For this reason, the range of decrease in the hot metal temperature at the time of receiving hot metal in the steelmaking process can be suppressed to a small extent, and stable blast furnace operation can be realized. Even if it is not possible to accept the hot metal ladle in the steelmaking process, if the hot metal ladle can be accepted in other steelmaking processes, it will be carried into the steelmaking process. Can be adjusted to a constant value. And, when it is impossible to accept any steelmaking process, and only in the case of a stamping pan, the hot metal pot is to be carried into the casting iron process, so that a rational and smooth operation at the integrated steel mill Hot metal distribution is now possible.
【００２９】[0029]
【発明の効果】以上説明したように、本発明によれば、
はんぱ鍋の取扱いをも含む合理的・総合的な溶銑物流シ
ステムを実現でき、高炉操業条件を変更することなく製
鋼工程の溶銑在庫量を一定に保つことができ、かつ、製
鋼工程での溶銑受け入れ時の溶銑温度の低下幅を低減さ
せることができる。As described above, according to the present invention,
It is possible to realize a rational and comprehensive hot metal distribution system including the handling of a hot pot, keep the hot metal inventory in the steelmaking process constant without changing the blast furnace operating conditions, and It is possible to reduce the decrease in the temperature of the hot metal at the time of receiving the hot metal.
【図１】本発明の溶銑物流システムのブロック図であ
る。FIG. 1 is a block diagram of a hot metal distribution system of the present invention.
【図２】本発明の溶銑物流制御方法のフローチャートで
ある。FIG. 2 is a flowchart of a hot metal flow control method of the present invention.
１ 高炉 ２ 溶銑予備処理設備 ３ 製鋼工場 ４ 鋳銑工場 ５ 溶銑鍋 ６ 機関車 ７ プロセスコンピュータ ８ データベース Reference Signs List 1 blast furnace 2 hot metal pretreatment equipment 3 steelmaking plant 4 cast iron factory 5 hot metal pot 6 locomotive 7 process computer 8 database
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小澤 宏一 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 Ｆターム(参考） 3F022 LL11 MM07 MM22 MM28 PP03 PP06 4K002 AB01 AB02 4K014 AD01 AD21 AD23 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Koichi Ozawa 1-2-1 Marunouchi, Chiyoda-ku, Tokyo F-term in Nihon Kokan Co., Ltd. 3F022 LL11 MM07 MM22 MM28 PP03 PP06 4K002 AB01 AB02 4K014 AD01 AD21 AD23
Claims (7)
と、鋳銑工場を備え、これら各設備、各工場間を移動す
る複数の溶銑鍋を備えた製鉄所において、 ある製鋼工程における溶銑在庫量を予測する手段と、あ
る溶銑鍋を搬入することにより前記手段に基づく溶銑在
庫量があらかじめ定められた溶銑在庫基準量より多くな
るか否かを判定する手段と、溶銑在庫量が溶銑在庫基準
量より多くなるときには、その溶銑鍋を鋳銑工程または
前記ある製鋼工程以外の他の製鋼工程に振り向ける手段
とを含むことを特徴とする溶銑物流システム。Claims: 1. An ironworks equipped with a blast furnace, a hot metal pretreatment facility, a steelmaking plant, and a cast iron plant, and having a plurality of hot metal pots moving between these facilities and each plant, comprising: Means for estimating the amount of hot metal, means for determining whether or not the amount of hot metal inventories based on the above-mentioned means by carrying in a certain hot metal ladle is greater than a predetermined hot metal inventory reference amount, Means for redirecting the hot metal pot to a casting iron process or another steelmaking process other than the certain steelmaking process when the amount exceeds the reference amount.
る場合に、その溶銑鍋の受銑量が所定量未満か否かを判
定し、所定量未満のときにはその溶銑鍋の鋳銑工程への
受け入れを判定する手段と、所定量未満でないときには
その溶銑鍋の当該製鋼工程以外の他の製鋼工程への受け
入れを判定する手段とを含むことを特徴とする請求項１
記載の溶銑物流システム。2. When the amount of hot metal ingot is larger than a standard amount of hot metal inventories, it is determined whether or not the amount of hot metal received by the hot metal pot is less than a predetermined amount. And means for judging acceptance of the hot metal ladle to a steelmaking process other than the steelmaking process if the amount is not less than a predetermined amount.
Hot metal logistics system as described.
おける高炉の出銑情報、製鋼工程の精錬計画、溶銑鍋の
位置情報、溶銑予備処理設備の稼働状況の情報より任意
時間後の製鋼工程毎の溶銑在庫量を予測することを特徴
とする請求項１または請求項２記載の溶銑物流制御シス
テム。3. The means for predicting the amount of hot metal inventories includes information on the tapping information of the blast furnace at any time, the refining plan of the steelmaking process, the position information of the hot metal ladle, and the information on the operating status of the hot metal pretreatment equipment. 3. The hot metal distribution control system according to claim 1, wherein a hot metal inventory amount for each process is predicted.
製鉄所において、 ある溶銑鍋を製鋼工程に搬入する場合に、その製鋼工程
の溶銑在庫量を予測し、その溶銑在庫量があらかじめ定
められた溶銑在庫基準量より多いときには、当該溶銑鍋
を鋳銑工程へ搬送することを特徴とする溶銑物流制御方
法。4. In a steel mill having a hot metal process, a steel making process, and a cast iron process, when a hot metal ladle is carried into a steel making process, the hot metal inventory of the steel making process is predicted, and the hot metal inventory is determined in advance. A hot metal distribution control method, comprising: transferring the hot metal ladle to a casting iron process when the hot metal inventory amount is larger than the reference amount.
る製鋼工程に搬入する場合において、その製鋼工程の溶
銑在庫量が溶銑在庫基準量より多いと予想されるときに
は、他の製鋼工程への搬入が可能か否かを製鋼工程毎に
判定し、いずれの他の製鋼工程においても受け入れが不
能である場合に、当該溶銑鍋を鋳銑工程へ搬送すること
を特徴とする請求項４記載の溶銑物流制御方法。5. In a case where a plurality of steelmaking processes are carried in and a certain hot metal ladle is carried into a certain steelmaking process, if the amount of hot metal stock in the steelmaking process is expected to be larger than the standard amount of hot metal stock, another steelmaking process is performed. It is determined whether or not transfer to the hot metal is possible for each steelmaking process, and if the steelmaking process cannot be accepted in any other steelmaking process, the hot metal pot is transferred to the cast iron process. The method of controlling hot metal flow described above.
製鉄所において、 ある溶銑鍋の受銑量が所定量未満か否かを判定し、その
受銑量が所定量未満であるときには、当該溶銑鍋を鋳銑
工程へ搬送することを特徴とする溶銑物流制御方法。6. In a steel mill having a hot metal process, a steelmaking process, and a cast iron process, it is determined whether or not the amount of hot metal received by a hot metal ladle is less than a predetermined amount. A method for controlling hot metal flow, comprising transferring the hot metal pot to a casting iron process.
製鉄所において、 複数の製鋼工程を有し、ある溶銑鍋をある製鋼工程に搬
入する場合に、その製鋼工程の溶銑在庫量を予測し、そ
の溶銑在庫量があらかじめ定められた溶銑在庫基準量よ
り多いときには、他の製鋼工程への搬入が可能か否かを
製鋼工程毎に判定し、いずれの他の製鋼工程においても
受け入れが不能であるとき、または、その溶銑鍋の受銑
量が所定量未満であるときには、当該溶銑鍋を鋳銑工程
へ搬送することを特徴とする溶銑物流制御方法。7. In a steel mill having a hot metal process, a steel making process, and a cast iron process, when a plurality of steel making processes are carried in and a certain hot metal ladle is carried into a steel making process, the amount of hot metal stock in the steel making process is predicted. However, when the hot metal inventory is greater than the predetermined hot metal inventory standard, it is determined for each steelmaking process whether or not it can be carried into another steelmaking process, and it cannot be accepted in any other steelmaking process. Or when the amount of hot metal received by the hot metal pot is less than a predetermined amount, the hot metal hot pot is transported to a casting iron process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000190666A JP2002003909A (en) | 2000-06-26 | 2000-06-26 | Distribution system for molten iron and method for controlling distribution of molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000190666A JP2002003909A (en) | 2000-06-26 | 2000-06-26 | Distribution system for molten iron and method for controlling distribution of molten iron |
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| Publication Number | Publication Date |
|---|---|
| JP2002003909A true JP2002003909A (en) | 2002-01-09 |
Family
ID=18690096
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000190666A Withdrawn JP2002003909A (en) | 2000-06-26 | 2000-06-26 | Distribution system for molten iron and method for controlling distribution of molten iron |
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| Country | Link |
|---|---|
| JP (1) | JP2002003909A (en) |
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| CN114559027A (en) * | 2022-04-15 | 2022-05-31 | 江苏金恒信息科技股份有限公司 | Molten iron scheduling method and system based on quality requirement of steelmaking molten iron |
| CN114603126A (en) * | 2022-03-17 | 2022-06-10 | 江苏迪萨机械有限公司 | Hot metal bottle capping device with adjustable cover |
| CN115213360A (en) * | 2022-05-17 | 2022-10-21 | 宁波日星铸业有限公司 | Preparation method of nodular cast iron for wind driven generator hub |
| CN115896369A (en) * | 2022-11-18 | 2023-04-04 | 广东中南钢铁股份有限公司 | Tapping method, device, equipment and storage medium after blast furnace reblowing |
-
2000
- 2000-06-26 JP JP2000190666A patent/JP2002003909A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114603126A (en) * | 2022-03-17 | 2022-06-10 | 江苏迪萨机械有限公司 | Hot metal bottle capping device with adjustable cover |
| CN114603126B (en) * | 2022-03-17 | 2024-02-23 | 江苏迪萨机械有限公司 | Hot-metal bottle capping device with adjustable cover |
| CN114559027A (en) * | 2022-04-15 | 2022-05-31 | 江苏金恒信息科技股份有限公司 | Molten iron scheduling method and system based on quality requirement of steelmaking molten iron |
| CN115213360A (en) * | 2022-05-17 | 2022-10-21 | 宁波日星铸业有限公司 | Preparation method of nodular cast iron for wind driven generator hub |
| CN115213360B (en) * | 2022-05-17 | 2024-04-09 | 宁波日星铸业有限公司 | Preparation method of spheroidal graphite cast iron for hub of wind driven generator |
| CN115896369A (en) * | 2022-11-18 | 2023-04-04 | 广东中南钢铁股份有限公司 | Tapping method, device, equipment and storage medium after blast furnace reblowing |
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