Behavior of Gas–Slag–Metal Emulsion with Nozzle–Twisted Lance in Converter Steelmaking Process

2021 ◽  
Author(s):  
Ming Lv ◽  
Hang Li ◽  
Tengchang Lin ◽  
Kun Xie ◽  
Kui Xue
Keyword(s):  
Converter Steelmaking ◽  
Steelmaking Process

Variation in Multiphase Flow Characteristics by Nozzle‐Twisted Lance Blowing in Converter Steelmaking Process

2021 ◽  
pp. 2100409
Author(s):  
Ming Lv ◽  
Hang Li ◽  
Xiangdong Xing ◽  
Tengchang Lin ◽  
Shaoyan Hu ◽  
...  
Keyword(s):  
Multiphase Flow ◽  
Flow Characteristics ◽  
Converter Steelmaking ◽  
Steelmaking Process

Effect of nozzle twisted oxygen lance on flow field and dephosphorisation rate in converter steelmaking process

2016 ◽  
Vol 44 (9) ◽  
pp. 640-648 ◽  
Author(s):  
F. Liu ◽  
D. Sun ◽  
R. Zhu ◽  
F. Zhao ◽  
J. Ke
Keyword(s):  
Flow Field ◽  
Converter Steelmaking ◽  
Oxygen Lance ◽  
Steelmaking Process

scholarly journals Effect of Side-blowing Arrangement on Flow Field and Vanadium Extraction Rate in Converter Steelmaking Process

2018 ◽  
Vol 58 (5) ◽  
pp. 852-859
Author(s):  
Fuhai Liu ◽  
Dongbai Sun ◽  
Rong Zhu ◽  
Kai Dong ◽  
Ruiguo Bai
Keyword(s):  
Flow Field ◽  
Extraction Rate ◽  
Converter Steelmaking ◽  
Steelmaking Process ◽  
Vanadium Extraction

Research on Using Limestone for Slagging during BOF Steelmaking Process

2013 ◽  
Vol 690-693 ◽  
pp. 237-245 ◽  
Author(s):  
Jia Feng ◽  
Hong Li ◽  
Chen Xiao Li ◽  
Wen Chen Song ◽  
Wu Nian ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Speed ◽  
Early Stage ◽  
Converter Steelmaking ◽  
Steelmaking Process ◽  
Hot Metal ◽  
Primary Research ◽  
High Basicity ◽  
Unreacted Core ◽  
Unreacted Core Model

This paper introduced the primary research on the method of using limestone instead of lime for slagging during BOF steelmaking. The study showed that the heat is sufficient for limestone to completely replace lime on the condition that the ratio of hot metal to ferrous scrap is adjusted properly. According to thermodynamic calculations, the partial pressure of CO2 at the hot metal surface at the early stage of converter steelmaking is close to 0 and nearly all the CO2 can react with elements in hot metal, producing CO and reducing O2 consumption. Slag with high oxidizability, high basicity and relatively low temperature can be formed quickly by using limestone, which is advantageous for dephosphorization. Industrial tests showed the endpoint Lp rises with the proportion of lime replaced by limestone increasing. CO2 volume expands by 4000~30000 times when limestone is heated at extremely high speed in converter, resulting in the fragmentation of some parts of limestone and the increase of the contacting area of limestone and slag. The unreacted core model with surface exfoliated was introduced.

Resulfurization behavior of pipeline steel in a converter steelmaking process

2015 ◽  
Vol 112 (5) ◽  
pp. 504
Author(s):  
Jian-fei Xu ◽  
Fu-xiang Huang ◽  
Xin-hua Wang ◽  
Cai-liang Jing
Keyword(s):  
Pipeline Steel ◽  
Converter Steelmaking ◽  
Steelmaking Process

scholarly journals Converter steelmaking process: state, dominant trends, forecasts

2018 ◽  
Vol 411 ◽  
pp. 012002
Author(s):  
E V Protopopov ◽  
S N Kuznetsov ◽  
S V Feiler ◽  
L A Ganzer ◽  
A N Kalinogorsky
Keyword(s):  
Converter Steelmaking ◽  
Steelmaking Process

Discussion on the Decomposition Laws of Limestone during Converter Steelmaking Process by Static Decomposition Model under Constant Temperature

2011 ◽  
Vol 233-235 ◽  
pp. 2648-2653 ◽  
Author(s):  
Luo Fang Guo ◽  
Hong Li ◽  
Zi Quan Li ◽  
Yong Qing Li ◽  
Wen Chen Song ◽  
...  
Keyword(s):  
Particle Size ◽  
Layer Thickness ◽  
Constant Temperature ◽  
Decomposition Rate ◽  
Large Particle ◽  
Converter Steelmaking ◽  
Steelmaking Process ◽  
Decomposition Model ◽  
Unreacted Core ◽  
Unreacted Core Model

Variations of decomposition rate and decomposition layer thickness of six spherical limestone particles with different sizes are calculated and compared with each other by the experiments and model of static decomposition of limestone under constant temperature. The results indicate that: the decomposition process of limestone can be explained by unreacted core model (UCM) when it is heated sharply; the decomposition rate of large particle is greater than that of small one; the smaller particle size, the larger decomposition layer thickness in unit time.

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