湘钢240mm×240mm方坯连铸机高效化改造

特殊钢 ›› 2005, Vol. 26 ›› Issue (1): 49-51.

湘钢240mm×240mm方坯连铸机高效化改造

杨建华

湘潭钢铁集团有限公司第二炼钢厂，湘潭411101

收稿日期:2004-07-16 出版日期:2005-02-01 发布日期:2023-05-24
作者简介:杨建华，男，29岁，助理工程师。1999年毕业于华东冶金学院钢铁冶金专业，从事炼钢及连铸工艺研究工作。

Re vamping of 240 mm×240 mm Bloom Concaster for High Efficiency at Xiangtan Iron and Steel

Yang Jianhua

No2 Steelmaking Plant, Xiangtan Iron and Steel Group Co Ltd, Xiangtan 411101

Received:2004-07-16 Published:2005-02-01 Online:2023-05-24

摘要/Abstract

摘要： 通过增加结晶器长度、一次冷却水流量 ,采用二冷动态配水、结晶器液面自动控制和结晶器电磁搅拌等改造措施 ,湘钢 240mm× 240mm方坯连铸机小时产量由 64.73t提高到 84.67t,拉速由 0.5～ 0./8m min提高到 10～ 11m /min ,生产的钢种为 20管坯钢、45钢、中低压锅炉管用钢、40Cr、20Cr等。 20管坯最大合格率由 2 0 0 2年的～ 6 0 %提高到 2003年的 80 %。

关键词: 240 mm×240mm 方坯, 连铸, 高效化, 改造

Abstract: By revamping to increase mould length and first cooling water flow rate, use active supply secondary water, automatic control of mould liquid level and mould electromagnetic stirring, the output per hour of 240 mm×240 mm concasting bloom increased to 84.67 t from original 64.73 t and casting speed increased to 1.0～1.1 m/min from 0.5～0.8 m/min. The casting steel grades were 0.2C steel bloom for tube,0.45C steel, steel for medium and low-pressure boiler tube, steel 40Cr and steel 20Cr etc. The maximum percentage up to standard for 0.20C steel casting bloom for tube in- creased to 80% in 2003 from 60% in 2002.

杨建华. 湘钢240mm×240mm方坯连铸机高效化改造[J]. 特殊钢, 2005, 26(1): 49-51.

Yang Jianhua. Re vamping of 240 mm×240 mm Bloom Concaster for High Efficiency at Xiangtan Iron and Steel[J]. Special Steel, 2005, 26(1): 49-51.