|
|
|
| Practice of Steelmaking With High Silicon Hot Metal Using Offgas Analysis and Dynamic Control Techniques |
| WU Ming,SHI Zhi-ji |
| （No.1 Steel Making and Rolling General Plant, Maanshan Iron and Steel Company Limited, Ma’anshan 243000, Anhui, China |
|
|
|
|
Abstract The offgas analysis and dynamic control technology was introduced to produce the low-carbon and low phosphor steel using high silicon hot metal for 120t converter at Masteel. Through controlling reasonable load, slag and supply oxygen system, using slag retaining and dual slag technique, controlling the slag tipping time, optimizing slagging process and controlling splash, the following results is achieved, the aim phosphorus content is less than 0012%, slag splashing percentage is reduced from 18.2% to 5.1%, metal loss is decreased from 10.3% to 8.2%, the hit rate of aim carbon content is increased from 81.5% to 91.7%.
|
|
Received: 27 March 2012
Published: 14 January 2013
|
|
|
|
| [1] |
Lü Ming1,LI Hang1,YANG Lingzhi2,LI Xiaoming1, XING Xiangdong1,YANG Zeshi2. Effect of bottom blowing flow rate near EBT area on EAF steelmaking[J]. Iron and Steel, 2019, 54(10): 38-44. |
| [2] |
JIANG Da-jun. Experiment on influence of sintering properties with a medium titanium magnetite concentrate[J]. Iron and Steel, 2018, 53(5): 18-24. |
| [3] |
WANG Qing-guo，，ZHU Tong，LI Yong. Sintering flue gas purifying process and equipment by use of activated coke in Baosteel[J]. Iron and Steel, 2018, 53(3): 87-95. |
| [4] |
XU Ying，，ZHANG Zi-zi，，WANG Bian，，HU Chen-guang，，WANG Huan-huan，. Curing influence factors and mechanism of stainless steel slag in AOD[J]. Iron and Steel, 2017, 52(8): 43-47. |
| [5] |
XIAO Bo，LEI Yu-cheng，WANG Zhong-ying. Water model and numerical simulation for 90 t ladle bottom argon blowing process[J]. Iron and Steel, 2015, 50(11): 32-36. |
| [6] |
SU Hang, CHAI Xi-yang, PAN Tao, YANG Cai-fu. Effect of N Content on Microstructure and Strengthening Effect in Normalized V-N Microalloyed Steel[J]. Iron and Steel, 2014, 49(6): 85-90. |
|
|
|
|
2012, Vol. 47 
