| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.3 ( September 1981 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Reconstruction of Mizushima No.2 Blast Furnace for the Third Campaign Keigo Kadomoto, Nobunao Kato, Toru Ishihara, Masasuke Oishi |
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Synopsis : No.2 blast furnace at Mizushima Works was blown out on July 31, 1978 and blown in on March 20, 1979 for the third campaign. The period of a little over seven months is considered reasonable from economic viewpoint. With major reconstruction work including the blowing-out without burden, the slow cooling of hot stoves, and the following items all carried out within and by the company alone, the recent work indicates a sufficient capability of the company in this field covering hardware and software including manning to a point of practical application anywhere: (1) New approaches for prolongation of blast furnace compaign life, (2) A new way of taking in shell plates and large bell from the furnace bottom, (3) Automatic horizontal welding machine for girth seams on shell plates, (4) A new retractable hood for secondary dust collection around the tap hole, and (5) Molten slag cooler (called K-N type) for high-density granulated slag. |
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