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川崎製鉄技報 KAWASAKI STEEL GIHO

Vol.3 (1971) No.4

第3 焼結工場の計算機システム

Computer System of No.3 Sintering Plant

前田 政和(Masakazu Maeda) 竹原 亜生(Tsuguo Takehara) 要旨 : 千葉製鉄所第3焼結工場の計算機制御システムは1970 年3月に稼働開始した。本計算機シ ステムの主な機能は,直接ディジタル制御,その設定値を与える制御およびデータ処理な どであり,本計算機システムは焼結プラントの操業の効率化に大きく貢献している。本計 算機システムの特長は次のとおりである。(1)従来のアナログ調節計に代って DDC(Direct Digital Control)を採用し,制御性の向上をはかっている。(2)計算機で多くの情報を用い ることによって従来むずかしかった制御を実用化した。(3)種々の計算機器,調節計および演 算器の代替をした結果,計測設備のコストを低減した。(4)作業の自動化およびデータ処理 によっておよそ16 名の省力化に寄与している。(5)データ収集,ロギング,数式モデルに基 づく演算およびオペレータガイダンスのための表示など完全なデータ処理を行なったいる。 (6)システムおよびメインテナンスの簡素化がはかられている。 Synopsis :

The computer control system of No.3 sintering plant in Chiba Works went into operation in March 1970. The main function of this system consists of direct digital control, supervisory control of set-points, data processing and the like. The efficient operation of sintering plant is maintained by full utilization of this computer system. The features of this system are as follows; (1) Adoption of DDC instead of conventional control with analogue regulator, aiming at the improvement in control accuracy. (2) Accomplishment of some of the hitherto-impossible control methods by utilized a great deal of information obtained by computer. (3) Saved investment as a result of replacing various instrument, controller and calculator by computers. (4) Achievement of man-power-saving of about 16 persons owing to automatization of some kinds of operations and data processing. (5) Performance of complete data processing; data acquisition, logging, calculation based on mathematical model and display for operator guidance. (6) Attempt at simplification of system and maintenance. Since the start to this day, the computer system itself has been working with high dependability.

(c)JFE Steel Corporation, 2003

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