Steelmaking. Characteristics of Scrap Preheating by Shaft-type Preheater.

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Other Title
  • 製鋼　シャフト型予熱装置によるスクラップ予熱特性
  • シャフト型予熱装置によるスクラップ予熱特性
  • シャフトガタ ヨネツ ソウチ ニヨル スクラップ ヨネツ トクセイ

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Description

A new scrap preheater, named MSP(Multistage Super Preheater),has been developed by Daido Steel Co., Ltd. MSP is a kind of shaft-type Preheater and has two chambers, upper stage and lower stage. Steel-maded fingers which support the load of scrap are provided in both chambers. To investigate the basic functions of shaft-type preheater, experimental equipment was installed and scrap preheating experiments were carried out. The experimental results are as follows. (1) After 30 minutes heating by about 1200; gas, the average scrap temperature is 500~600;, and preheating efficiency is 35~45%. (2) Scrap oxidation proceeds by the heating at the temperature of more than 6 0 0 ;,and its rate reaches as much as 10%/hour by the heating at the temperature of 1200;.

Journal

  • DENKI-SEIKO

    DENKI-SEIKO 68 (1), 13-20, 1997

    Daido Steel Co., Ltd.

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