scholarly journals Mathematical Model of Hot Metal Desulphurization by Powder Injection

2001 ◽  
Vol 41 (Suppl) ◽  
pp. S66-S69 ◽  
Author(s):  
Zongshu Zou ◽  
Yousheng Zou ◽  
Libing Zhang ◽  
Nan Wang
Keyword(s):  
Mathematical Model ◽  
Powder Injection ◽  
Hot Metal

scholarly journals Mathematical Model of Hot Metal Desulfurization by Powder Injection

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Yolanda Cepeda Rodríguez ◽  
Guillermo González Múzquiz ◽  
José Refugio Parga Torres ◽  
Luciano Eliezer Ramírez Vidaurri
Keyword(s):  
Mathematical Model ◽  
Gas Flow ◽  
Calcium Carbide ◽  
Treatment Temperature ◽  
Research Field ◽  
Transport Processes ◽  
Powder Injection ◽  
Hot Metal ◽  
Temperature Rate ◽  
Hot Metal Desulfurization

Although there have been a numerous number of studies on mathematical model of hot metal desulfurization by deep injection of calcium carbide, the research field as a whole is not well integrated. This paper presents a model that takes into account the kinetics, thermodynamics, and transport processes to predict the sulfur levels in the hot metal throughout a blow. The model could be utilized to assess the influence of the treatment temperature, rate of injection, gas flow rate, and initial concentration of sulfur on the desulfurization kinetics. In the second part of this paper an analysis of the industrial data for injection of calcium carbide using this model is described. From a mathematical model that describes the characteristics of a system, it is possible to predict the behavior of the variables involved in the process, resulting in savings of time and money. Discretization is realized through the finite difference method combined with interpolation in the border domain by Taylor series.

scholarly journals A Straightforward Mathematical Model of Hot Metal Desulphurization

2020 ◽  
Vol 10 (06) ◽  
pp. 318-327
Author(s):  
Miguel A. Barron ◽  
Dulce Y. Medina ◽  
Joan Reyes
Keyword(s):  
Mathematical Model ◽  
Hot Metal

scholarly journals Mathematical simulation of BF hot blast temperature influence on variations of silicon content in hot metal

2018 ◽  
pp. 25-31
Author(s):  
P. P. Semenyuk ◽  
R. E. Velikotsky ◽  
N. A. Rumyantseva
Keyword(s):  
Mathematical Model ◽  
Mathematical Analysis ◽  
Silicon Content ◽  
Statistical Data ◽  
Hot Metal ◽  
Blast Temperature ◽  
Mathematical And Computer Simulation ◽  
Hot Blast ◽  
Operation Results ◽  
Steel Works

The problem of influence of sinter production technological factors on silicon content and particularly variations of Si (ΔSi) in hot metal is actual for the up-to-date metallurgy.Traditional methods and plans of studies of BF heat running at present are considered less precise and effective comparing with up-to-date methods of mathematical and computer simulation, since the last provide an ability to forecast and optimize numerous parameters of BF process.A complex mathematical analysis of dependence between hot blast temperature and ΔSi by application of the universal mathematical model, specially elaborated and adapted for industrial conditions of sinter plant operation of Alchevsk steel-works was the task of the study.Influence of hot blast temperature (X-Factory) on minimization of ΔSi (Y-Factory) studied. Complex mathematical analysis was carried out using statistical data collected during 65 months of Alchevsk steel-works blast furnace of 3000 m3 operation. Results of calculation of influence of hot blast temperature on ΔSi by application of the universal mathematical model presented. Minimization of ΔSi when optimizing hot blast temperature reached. Accuracy of calculation using the elaborated model was more 99% of actual operational statistic.

scholarly journals A Mathematical Model of Desulphurization Kinetics for Ultra-low-sulfur Steels Refining by Powder Injection during RH Processing

2016 ◽  
Vol 56 (8) ◽  
pp. 1368-1377 ◽  
Author(s):  
Cheng-yi Zhu ◽  
Peng-ju Chen ◽  
Guang-qiang Li ◽  
Xiao-yan Luo ◽  
Wan Zheng
Keyword(s):  
Mathematical Model ◽  
Powder Injection ◽  
Low Sulfur

Hot metal pretreatment by powder injection of lime-based reagents

2001 ◽  
Vol 72 (5-6) ◽  
pp. 173-181 ◽  
Author(s):  
Marissa Vargas-Ramirez ◽  
Antonio Romero-Serrano ◽  
Rodolfo Morales ◽  
Miguel Angeles-Hernandez ◽  
Federico Chavez-Alcala ◽  
...  
Keyword(s):  
Powder Injection ◽  
Hot Metal ◽  
Hot Metal Pretreatment

scholarly journals Numerical Simulation of Multiphase Flow Behavior in Hot Metal Ladle Desulfurization with Bottom Powder Injection and Electric Field

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Lianghua Feng ◽  
Xiangwei Liao ◽  
Kun Liu ◽  
Wei Kang ◽  
Peng Han ◽  
...  
Keyword(s):  
Particle Concentration ◽  
Flow Behavior ◽  
Research Work ◽  
Powder Injection ◽  
Discrete Phase Model ◽  
Hot Metal ◽  
Stagnation Region ◽  
Concentration Difference ◽  
Injection Speed ◽  
Hot Metal Ladle

A computation fluid-coupled discrete phase model (CFD-DPM) was used to predict the motion characteristics of gas, particle, and liquid phases in the hot metal ladle. The influence of different voltage loading modes, voltage values, and powder injection speeds on the particle motion trail was investigated, while the effects on the particle concentration maximum difference in the stagnation region were discussed. The optimal injection and voltage parameters were proposed. The results are shown as follows: the loading voltage before injection is beneficial to the diffusion of particles in the molten pool. With the increase of voltage and injection speed, the distribution of particles in the upper part of the molten iron tends to be uniform. The bottom of the ladle is the stagnation region. Optimum voltage and injection speed were determined. Under the optimum conditions, particles are evenly dispersed and the particle concentration difference in the stagnation region is small. This research work will benefit greatly to the hot metal ladle desulfurization technology.

scholarly journals A Mathematical Model of Blast Furnace for Control of Hot Metal Temperature

1981 ◽  
Vol 67 (3) ◽  
pp. 518-527 ◽  
Author(s):  
Michiharu HATANO ◽  
Yoshisuke MISAKA ◽  
Yoshiyuki MATOBA ◽  
Koichi OTSUKA
Keyword(s):  
Mathematical Model ◽  
Blast Furnace ◽  
Metal Temperature ◽  
Hot Metal
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