Evaluation of Dust Generated from Basic Oxygen Furnace Steel Making

1997 ◽  
Vol 47 (6) ◽  
pp. 716-721 ◽  
Author(s):  
Santanu K. Ray ◽  
Gautam Chattopadhyay ◽  
Asim K. Ray
Keyword(s):  
Basic Oxygen Furnace ◽  
Basic Oxygen ◽  
Steel Making ◽  
Furnace Steel

Optimization of Residual Manganese in Molten Metal in Basic Oxygen Furnace (BOF)

2007 ◽  
Vol 561-565 ◽  
pp. 85-89 ◽  
Author(s):  
O.A. El Hady ◽  
Amer E. Amer ◽  
I.S. El Mahallawi ◽  
Y.S. Shash
Keyword(s):  
Basic Oxygen Furnace ◽  
Slag Basicity ◽  
Steel Company ◽  
Total Energy Consumption ◽  
Lance Height ◽  
Basic Oxygen ◽  
Iron And Steel ◽  
System A ◽  
Steel Making ◽  
Number Of Factors

At the Egyptian Iron and Steel Company, attention is constantly focused on improving basic steel making practice with the aim of improvement of blowing regime and the addition of forming slag materials system. A number of factors considered important in controlling the properties of steel products and affecting the residual manganese in the basic Oxygen furnace (BOF) have been investigated by changing some industrial parameters, aiming at optimizing the residual manganese in BOF. The studied factors were manganese oxide in the slag, iron oxide in the slag, tapping temperature, Slag basicity, Lance height, blowing time, and carbon content. It was found that residual manganese increased from 0.25 to 0.35 % wt, due to the reduction of both MnO in slag from 22% to 15% and FeO from 21 to18%, also the increase of tapping temperature from 1650 oC to 1670 oC caused an increase the residual manganese from 0.27% to 0.35%, and the slag basicity decrease from 4.25 to 3.8 led to an increase in the residual manganese from 0.25 to 0.37%. Also, the change of the lance height from 1050 mm to 825 mm caused an increase in the residual manganese from 0.27 % to 0.33 %. These results are believed to be reflected on the total energy consumption and ferromanganese additions needed for producing specific grades.

Concrete Produced by Steel-Making Slag (Basic Oxygen Furnace) Addition in Portland Cement

2009 ◽  
Vol 6 (6) ◽  
pp. 736-748 ◽  
Author(s):  
Hasan Alanyali ◽  
Mustafa Çöl ◽  
Muharrem Yilmaz ◽  
Şadi Karagöz
Keyword(s):  
Portland Cement ◽  
Basic Oxygen Furnace ◽  
Basic Oxygen ◽  
Steel Making

Cementitious property modification of basic oxygen furnace steel slag

2013 ◽  
Vol 48 ◽  
pp. 575-579 ◽  
Author(s):  
Zaibo Li ◽  
Sanyin Zhao ◽  
Xuguang Zhao ◽  
Tusheng He
Keyword(s):  
Steel Slag ◽  
Basic Oxygen Furnace ◽  
Basic Oxygen ◽  
Furnace Steel ◽  
Property Modification

A New Spectral Analysis Technique Used in Converter Steelmaking BOF Endpoint Control

2010 ◽  
Vol 139-141 ◽  
pp. 689-692 ◽  
Author(s):  
Ling Fei Xu ◽  
Wu Sen Li ◽  
Shi Xue Xu ◽  
Jia Li ◽  
Yong Qing Wang
Keyword(s):  
Basic Oxygen Furnace ◽  
Basic Oxygen ◽  
Steel Making ◽  
Analysis Technique ◽  
Flame Emission ◽  
Proposed Model ◽  
Endpoint Control ◽  
Spectrum Distribution ◽  
And Control ◽  
Changing Process

This article introduces an arithmetic approach to establish an optical system aiming to eliminate the shortcomings in the steel making technique. The current basic oxygen furnace technique is flawed because the level of carbon content in the molten iron is estimated by the workers observation through experience. It is hard to compare, measure and control. The proposed model, on the other hand, is much more computable: relevant data is collected from spectrum distribution during the process of basic oxygen furnace. It predicts the end-point of BOF relatively accurate because spectrum is quantifiable, and the changing process of the furnace flame is essentially the changing process of the spectrum. In this model, we can measure the temperature of the molten steel by the Flame emission spectroscopy theory principle. Further more, the result of the experiment conducted based on the model shows that the model meets the requirements of endpoint judgment online.

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