摘要
针对攀钢集团西昌钢钒有限公司普碳钢生产过程中存在的脱硫成本较高的问题，在理论分析和计算的基础上，根据铁水硫含量制定出对应的铁水预脱硫以及LF精炼脱硫工艺路线；并对LF脱硫工艺的过程温度和成分控制、渣料加入量和加入方法、脱硫时间和过程吹氩控制等方面进行了系统优化和设计。工艺改进后，降低了过程铁水损耗，铁水人炉温度提高了28℃，浇钢过程温降减少13℃，合金锰的收得率提高了6．22％，LF渣态控制合理，脱硫效果稳定，成品w（S）控制在0．005％～0．021％，平均为0．0155％，完全满足钢种要求。新的工艺实施后，可以有效减少脱硫扒渣铁损和温度损失，从而明显降低脱硫成本，采用钢水脱硫比铁水脱硫降低成本8．97元／t。
In order to control the sulfur content in steel in the process of carbon steel production, countermeasures were carried out. On the basis of theoretical analysis and calculation, the desulfurization process of hot metal and LF refining was optimized according to the sulfur content in hot metal. Otherwise, temperature and composition control, quantity and method of slag addition, as well as desulfurization time and argon blowing were optimized and designed systematically. Industrial tests showed that, nice application effects were obtained, which the hot metal loss was reduced, the temperature of hot metal before converter melting was increased by 28 ℃, and temperature loss was reduced by 13 ℃. Moreover, the effective rate of manganese alloy was increased by 6. 22 %, and sulfur content in steel product was controlled in 0. 005 % - 0. 021%, and 0. 015 6% on average, which could meet the needs of the reauirement of customor
出处
《炼钢》
CAS
北大核心
2015年第1期22-26,共5页
Steelmaking
关键词
普碳钢
低成本
高效化
精炼脱硫
carbon steel
low cost
high efficient
desulfurization in secondary refining
