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| 80t LF精炼特殊钢的热态返回渣的循环应用 | |
| 引用本文： | 丁宁,秦登平,王坚,包燕平,王立峰.80t LF精炼特殊钢的热态返回渣的循环应用[J].特殊钢,2011,32(4):42-43. |
| 作者姓名： | 丁宁 秦登平 王坚 包燕平 王立峰 |
| 作者单位： | 1. 北京科技大学冶金与生态工程学院,北京100083;首钢技术研究院,北京100043 2. 首钢技术研究院,北京,100043 3. 北京科技大学冶金与生态工程学院,北京,100083 |
| 摘 要： | 首钢精炼82B、40Cr、20CrMnTi、60Si2Mn等钢种采用LF循环利用热态返回渣工艺。LF使用热态还原循环渣精炼特殊钢时,补加合成渣（或活性石灰）200～400kg/炉,适当增加电石消耗量,并用铝粒、电石、硅铁粉对渣脱氧。生产实践表明,采用该工艺使精炼脱硫率达到50%以上,LF后钢水氧活度≤10×10-6,并使LF造渣料-合成渣减少5kg/t钢,埋弧渣减少2kg/t钢,冶炼成本降低7元/t钢。热态精炼渣具有较高的回收利用价值。 |
| 关 键 词： | LF 热态精炼渣 循环利用 |
Reutilization of 80 t LF Hot Return Refining Slag for Special Steel |
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| Ding Ning,Qin Dengping,Wang Jian,Bao Yanping,Wang Lifeng.Reutilization of 80 t LF Hot Return Refining Slag for Special Steel[J].Special Steel,2011,32(4):42-43. | |
| Authors: | Ding Ning Qin Dengping Wang Jian Bao Yanping Wang Lifeng |
| Affiliation: | Ding Ning~(1,2),Qin Dengping~2,Wang Jian~2,Bao Yanping~2 and Wang Lifeng~2 (1 School of Metallurgical and Ecological Engineering,University of Science and Technology,Beijing 100083,2 Research Institute of Technology,Shougang,Beijing 100043) |
| Abstract: | The LF hot return slag process at Shougang is reutilized to refine steels including steel 82B,40Cr, 20CrMnTi and 60Si2Mn.During refining special steels in LF with using hot reducing return slag,200～400 kg/heat of synthetic slag or active lime is added,the consumption of calcium carbide increases properly and the slag is deoxidized by aluminium shot,calcium carbide and silico-ferrite powder.Production practice shows that with using this process the refining desulphurization rate is more than 50%,after LF refining the liquid oxygen activity≤10×10-6,the LF slag making materials -synthetic slag decreases by 5kg/t steel and submerged arc slag decreases by 2 kg/t steel,and the melting cost decreases by 7 yuan/t steel.The hot refining slag has higher reutilization value. |
| Keywords: | LF Hot Refining Slag Reutilization |
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