转炉高硅铁水双渣法高效生产技术实践  

An introduction of the production practice of double slag process for converter high silicon molten iron

作　　者：陈连军 廖桑桑[1] CHEN Lianjun;LIAO Sangsang(Xinyu Iron&Steel Group Co.,Ltd.,Xinyu 338001,China)

机构地区：[1]新余钢铁集团有限公司

出　　处：《江西冶金》2019年第6期38-41,共4页Jiangxi Metallurgy

摘　　要：针对转炉传统高硅铁水双渣冶炼周期长、金属收得率低、消耗高等问题,对转炉冶炼高硅铁水进行了工艺优化.采用低成本的石灰石替代石灰造前渣,通过控制炉渣碱度、炉温快速脱Si等方式,有效避免了转炉冶炼喷溅,提高了金属收得率,降低了转炉熔剂消耗、冶炼生产周期和环保冒烟风险等.工艺优化后石灰消耗减少19.2 kg/t,冶炼周期平均缩短208 s,钢铁料消耗降低6.4 kg/t.Facing the problem of the long smelting cycle, low metal yield, high consumption of converter solvent in the traditional operation of high silicon molten iron by the double slag method, the process that smelting high silicon molten iron by the converter was optimized. The converter smelting splash was avoided, the metal yield was improved, the consumption of converter solvent was reduced, the production cycle was narrowed and the smoking risks were lowered through those methods which include that the cost-performance limestone was adopted, the basicity of slag was controlled, and the furnace temperature was lowered. As such, the lime consumption was decreased by 19.2 kg/t since optimization, the production cycle was shortened by 208 s, and the steel consumption was lowered by 6.4 kg/t.

关 键 词：高硅铁水 双渣 喷溅 生产周期 

分 类 号：TF713.3[冶金工程—钢铁冶金]