|
|
|
| Parameters Affecting Energy Consumption for Producing High Carbon Ferromanganese in a Closed Submerged Arc Furnace |
| Azza Ahmed,Hossam Halfa,Mohamed K. El-Fawakhry,Hoda El-Faramawy,Mamdouh Eissa |
| Steel Technology, Metallurgical Research and Development Institute, Helwan 11421, Cairo, Egypt |
|
|
|
|
Abstract The power consumption is considered to be the most important factor affecting the production cost of ferromanganese alloy. Different parameters affecting the energy consumption for industrial production of high carbon ferromanganese HCFeMn were investigated in a closed submerged arc furnace. The analysis of industrial data revealed that the most energy-consumed factors were the direct reduction by solid carbon, Boudouard reaction, metal and slag formation, and decomposition of fluxing materials (limestone and dolomite). To reduce the energy consumption and minimize the energy losses in the production process of HCFeMn, it was recommended to use Mn blend with minimum Mn to Fe ratio of 6 and lower SiO2 content or higher basicity. The added coke must be adjusted according to the material balance to prevent the over-coke and to minimize the highly endothermic ��Boudouard reaction��. In addition, it was recommended to work at basic slags with the ratio of (CaO+MgO) to SiO2 equal to 1.0-1.2 instead of much higher slag basicity. Furthermore, the mass losses had to be minimized through adjusting the handling and charging process and to take care of all metal produced.
|
|
Received: 09 January 2013
Published: 08 July 2014
|
|
Corresponding Authors:
Azza MohamedAHMED
E-mail: azzaazza40@yahoo.com
|
|
|
|
| [1] |
Wen��long ZHAN,,Keng WU,Zhi��jun HE,Qi��hang LIU,Xiao��juan WU. Estimation of Energy Consumption in COREX Process Using a Modified Rist Operating Diagram[J]. Chinese Journal of Iron and Steel, 2015, 22(12): 1078-1084. |
| [2] |
Tong-lai GUO,Man-sheng CHU,Zheng-gen LIU,Hong-tao WANG. Numerical Simulation on Blast Furnace Operation with Hot Burden Charging[J]. Chinese Journal of Iron and Steel, 2014, 21(8): 729-736. |
| [3] |
DU Tao,SHI Tian,LIU Yong,YE Jian-bo. Energy Consumption and Its Influencing Factors of Iron and Steel Enterprise[J]. Chinese Journal of Iron and Steel, 2013, 20(8): 8-13. |
| [4] |
SUN Wen��qiang,CAI Jiu��ju,MAO Hu��jun,GUAN Duo��jiao,. Change in Carbon Dioxide (CO2) Emissions From Energy Use in China��s Iron and Steel Industry[J]. Chinese Journal of Iron and Steel, 2011, 18(6): 31-36. |
| [5] |
. Heat Transfer and Energy Analysis of a Pusher Type Reheating Furnace Using Oxygen Enhanced Air for Combustion[J]. Chinese Journal of Iron and Steel, 2010, 17(4): 12-17. |
| [6] |
SUN Wen��qiang;CAI Jiu��ju;DU Tao;et al. Specific Energy Consumption Analysis Model and Its Application in Typical Steel Manufacturing Process[J]. Chinese Journal of Iron and Steel, 2010, 17(10): 33-37. |
|
|
|
|
2014, Vol. 21 
