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一、概述 1.问题的提出根据湖南省钢铁工业发展规划,湘钢“七五”期间产钢70万吨,“八五”期间产钢100万吨,分别于1988年和1993年提前实现。1号平炉改吹氧后,三座平炉将形成70万吨钢的生产能力。如何使钢变成材,是连铸坯一火成材,还是对初轧大加改造使锭成坯,再使坯成材;钢材品种如何扩大及发展;以及250线材车间如何改造等等,均急待决策。 2.历史回顾与生产简况湘钢原设计为年产钢200万吨的发展规模,三年经济困难时期后,调整为60万吨。轧钢有250线材车间和为其专供原料的700/
I. Overview 1. According to the Hunan steel industry development plan, Xiangtan Steel produced 700,000 tons of steel during the “Seventh Five-Year Plan” period and produced 1 million tons of steel during the “Eighth Five-Year Plan” period, which was realized in advance in 1988 and 1993 respectively. No. 1 open hearth furnace oxygen, the three open hearth furnace will form 700,000 tons of steel production capacity. How to make the steel into a material, is a continuous casting slab fire, or a significant transformation of the early rolling to make ingot into a blank, and then the billet ready; how to expand and develop varieties of steel; and 250 wire workshop how to reform and so on, are anxious To be decided. 2. Historical Review and Production Profile Xiangtan Iron and Steel originally designed for the annual output of 2 million tons of steel scale of development, three years after the economic difficulties, adjusted to 600,000 tons. Rolling a 250 wire shop and for its raw materials for the 700 /