三机三流直弧形板坯连铸机核心装备技术的开发与应用

Development and Application of Core Equipment and Technology of Three-strand Straight-arc Slab Continuous Caster

介绍了三机三流直弧型连续弯曲/矫直板坯连铸机核心装备技术,开发了大容量T型中间罐、重载高低轨式中间罐车、板坯内外弧液压振动装置和L形立式扇形段传动装置。结果表明,三流板坯连铸技术可靠、稳定,实现了大型冶炼炉—连铸—热轧带钢生产节奏的合理匹配,可提高单台铸机产量至300万t,进而减少铸机数量,降低了钢厂的基建投资和后续生产的消耗;开发的新型连铸机,实现了板坯生产的准高效化,符合钢铁工业绿色、低碳发展的趋势。

The core equipment technology of three-strand three-flow straight-arc continuous bending/straightening slab caster was introduced.The large-capacity T-type tundish,semi ganty tundish car,slab inner and outer arc hydraulic oscillating device and L-shaped vertical segment drive were developed.The results show that the three strand slab continuous casting technology is reliable and stable,and the reasonable matching of production rhythm of large-scale smelting furnace,continuous casting and hot rolled strip steel can increase the output of a single casting machine to 3million tons,thus reducing the number of casting machines and reducing the capital construction investment and subsequent production consumption of the steel.The new type continuous casting machine has realized the quasi-high efficiency of slab production and is in line with the trend of green and low carbon development of iron and steel industry.