论文部分内容阅读
连续铸钢的特点是改变传统的铸锭-开坯工艺,将冶炼合格的钢水,通过连铸机连续浇铸成接近最终产品形状的铸坯,从而减少中间加工工序,降低金属损失和能耗。据1984年国际钢铁协会技术委员会对109个钢铁企业调查的结果表明,连铸工艺与传统铸锭工艺相比可节能20～50kgce/t钢。首钢第二炼钢厂的两台八流小方坯连铸机是公司“七五”重点技术改造项目,从1987年10月试点生产至今的生产能耗统计表明,平均每生产Lt120mm×120mm连铸坯,节约了45kgce。几年来第二炼钢厂通过不断强化设备维护,改进操作和完善生产组织,已使该厂大转炉(21Ot)配八流小方坯连铸的生产工艺日趋成熟,铸坯产量逐年上升。
Continuous cast steel is characterized by the change of the traditional ingot - billet process, the smelting of molten steel through the continuous casting machine into the shape of the final product near the slab, thereby reducing the intermediate processing steps to reduce metal loss and energy consumption. According to a survey conducted by the International Iron and Steel Institute’s Technical Committee on 109 steelmakers in 1984, it shows that the continuous casting process can save 20-50 kgce / t of steel as compared with the conventional ingot process. The two second-stream billet caster at Shougang No.2 Steelmaking Plant is the key technological renovation project of the “Seventh Five-year Plan” of the Company. From the trial production in October 1987 till now, the production energy consumption statistics show that the average output of Lt120mm × 120mm Slab, saving 45kgce. In the past few years, the second steelmaking plant has continuously matured the production process of continuous casting of billet billet by increasing equipment maintenance, improving operation and perfecting production organization. The production of cast billet has been increasing year by year.