炼钢 ›› 2014, Vol. 30 ›› Issue (6): 5-9.

• 生产实践 • 上一篇    下一篇

转炉炼钢污泥循环利用技术研究

  

  1. (1.北京科技大学 冶金与生态工程学院,北京 100083;2.攀钢集团研究院有限公司 钒钛资源综合利用国家重点实验室,四川 攀枝花 617000)
  • 接受日期:1900-01-01 出版日期:2014-12-05

Research on recycling technology of steelmaking sludge

  • Accepted:1900-01-01 Online:2014-12-05

摘要: 提出采用炼钢污泥、石英砂、锰矿按一定比例混合制成半钢炼钢用造渣剂的方法,并通过工业试验验证了新型造渣剂用于转炉炼钢造渣的可行性,实现了炼钢污泥的循环利用。工业试验表明,与原复合造渣剂相比,新型造渣剂具有更好的冶金效果。新型造渣剂初期渣形成时间缩短0.5 min,脱磷率平均提高1.2 %,终点钢水残锰质量分数平均提高0.01 %,终点炉渣T.Fe质量分数平均降低0.55 %,炉渣物相组成满足溅渣护炉的要求,循环利用具有良好的溅渣护炉效果。

关键词: 炼钢污泥, 造渣剂, 循环利用, 二次资源

Abstract: n the study, steelmaking sludge, quartz sand and manganese ore were mixed at a specific ratio to make slag former for semisteel steelmaking, and this method was experimental vivificated to feasible, steelmaking sludge was cyclic utilized. Industrial test show that the new slag former had a better metallurgical effect than the old one. Slag forming time was shortened by 0.5 min, the dephosphorization rate and manganese mass fraction of the molten steel was improved by 1.2 % and 0.01 % respectively, the mass fraction of T.Fe was reduced by 0.55 % in slag and phase composition of the slag completely meet the requirement of splashing, by which a better splashing effect was obtained.

Key words: steelmaking sludge, slag former, recycling;secondary resource