耐火与石灰 ›› 2024, Vol. 49 ›› Issue (2): 31-34.

• 综述 • 上一篇    下一篇

冶金石灰活性对转炉脱磷效果影响研究

  

  1. (1. 辛集市澳森钢铁集团有限公司,石家庄 052300;
    2. 华北理工大学 冶炼与能源学院,唐山 063210)
  • 出版日期:2024-04-10 发布日期:2024-04-28

Study on influence of metallurgical lime activity on#br# dephosphorization effect of converter#br#

  1. (1. Xinji Aosen Steel Group Co.,Ltd.,Shijiazhuang 052300,China;
    2. College of Metallurgy and Energy,North China University of Science and Technology,Tangshan 063210,China)
  • Online:2024-04-10 Published:2024-04-28

摘要: 本文针对3 个产地石灰石进行煅烧实验并分析其微观形貌,再采用所得活性石灰进行转炉脱磷试验。试验结
果表明:1)3 个产地石灰石品位、晶粒不同,1# 石灰石杂质较高,晶粒度尺寸大小为3# > 2# > 1#;2)石灰石品位越高、
晶粒尺寸越大,煅烧后的石灰活性越高,采用水解反应后,残留物越少。测量结果表明,3# 石灰比1# 低96.1 g;3)
石灰杂质含量高,活性度低,影响转炉化渣及脱磷率,3# 石灰脱磷率较1# 平均高9.8%。

关键词: 石灰石, 晶粒, 活性度, 脱磷率

Abstract: Abstract:In this paper, calcination experiments of limestones from three sources were carried
out,their micro-structures analyzed. Then,the obtained activated lime was used for converter
dephosphorization experiments. The experimental results show that: 1)The grades and grain
sizes of limestones from the three sources are different,the limestone No. 1 has a higher impurity
content;limestone No. 3 has the largest grain size,No. 2 the second,while limestone No. 1 has
the minimum among the three;2)the higher the grade and the larger the grain size of limestone,
the higher the activity of the calcined lime is and the less residue is left after hydrolysis reaction —
the results indicate that the residue of lime No. 3 is 96.1 g less than that of lime No. 1;3)the lime
with a high impurity content and low activity affects the slagging and dephosphorization rate of the
converter - the dephosphorization rate of lime No. 3 is 9.8% higher than that of No. 1 on average.

Key words: Limestone, Grain size, Activity, Dephosphorization rate

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