稳定连铸坯热送热装技术探索
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摘要
连铸坯热送热装在降低能源消耗、减少铸坯烧损、提高轧材成材率以及市场订单及时交付、物流运转等方面均起到了至关重要的作用。福建三钢闽光股份有限公司(以下简称三钢)炼钢厂着眼于此,通过开展攻关,采取加严炉前冶炼工序各环节控制、稳定连铸二冷区设备精度、优化冷却控制参数、强化热送沿线设备的日常点检维护水平及频次等措施,提高了板坯的无缺陷率,降低了铸坯落地率,连铸坯热送比例由2017年的76.82%提高至2018年的84.16%。
Hot Delivery and Hot Charging Technology of Continuous Casting Billet plays an important role in reducing energy consumption, reducing the burning loss of billet, improving the metal yield, delivering of market orders timely and logistics operation. By taking the control of each link in the converter smelting process, stabilizing the precision of the device in the secondary cooling zone, optimizing parameters of the cooling water controlling,increasing the frequency of equipment inspection and maintenance, the Steelmaking Plant of sanming has increased the defect-free rate of slab and reduced the slab landing rate. The proportion of the hot delivery of the continuous casting billet increased from 76.82% in 2017 to 84.16% in 2018.
Hot Delivery and Hot Charging Technology of Continuous Casting Billet plays an important role in reducing energy consumption, reducing the burning loss of billet, improving the metal yield, delivering of market orders timely and logistics operation. By taking the control of each link in the converter smelting process, stabilizing the precision of the device in the secondary cooling zone, optimizing parameters of the cooling water controlling,increasing the frequency of equipment inspection and maintenance, the Steelmaking Plant of sanming has increased the defect-free rate of slab and reduced the slab landing rate. The proportion of the hot delivery of the continuous casting billet increased from 76.82% in 2017 to 84.16% in 2018.
引文
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[2]孙永乐.刘德义.连铸坯热送热装生产工艺的实践[J].中国冶金,2006(2)16-19.
[3]赵海峰.王红广.连铸坯热送热装工艺发展状况[J]连铸,2004(4)3-5.
[4]赵海峰.邯钢连铸坯的热送热装工艺[J].连铸,2000(4)12-13.
[5]何宇明.胡兵.周宏.王谦.宽厚连铸坯角部裂纹控制技术开发[J].钢铁, 2016(7):34-40.
[6]王建钢.王皓.李人杰.张沅.热送裂纹产生机制及生产工艺控制研究[J].连铸,2017(2):22-25.
[7]汪洪峰.陶林.高强钢连铸板坯中心偏析的分析及改善措施[J].连铸,2017(10):33-37.
[8]孙彪.郭俊波.连铸板坯角部横裂纹产生原因及预防措施[J].安徽冶金,2017(1):37-40.
[9]汪开忠.孙维.刘学华.无缺陷连铸异型坯生产及其热送热装技术研究[J].钢铁,2005(6):37-38.
[10]王运方.连铸机扇形段轴承的失效分析与对策[J].轴承,2014(8):9-11.
[11]卢万有.杜振军.雷坤.刘阳.板坯去毛刺机的技术改进[J].河南冶金,2012(4):55-56.