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一、前言第二炼钢厂有3座50t氧气顶吹转炉,设计吹炼安排为三吹二,炉龄250炉,生产能力年产钢150万吨。1984年7月,3座转炉全部改造成顶底复吹转炉,1985年3月实现全连铸,年产钢达162万吨,超过设计能力,转炉吹炼实际达到三吹二点六。冶炼品种全部为低碳镇静钢,其中超低碳钢是生产的主要品种之一,低碳优质钢的
I. Preface The second steelmaking plant has three 50t oxygen top blown converter, the design of blowing arrangements for the three blowing two, furnace 250 furnaces, annual production capacity of 1.5 million tons of steel. In July 1984, all three converters were converted into top-bottom double-blown converter. In March 1985, the company achieved full continuous casting with an annual output of 1.62 million tons of steel, exceeding the design capacity. The converter blowing actually reached three blows of 2.6. All smelting varieties of low-carbon steel, including ultra-low carbon steel is one of the main varieties of production, low-carbon high-quality steel