Study on the Electricity Generation in Steel Production Concerning the Recovery of Waste Heat and Energy

Abstract:

A lot of energy resources such as coal, electricity and oils, are consumed during the steel production, and simultaneously a variety of waste heat and energy is produced. If most of the waste heat and energy can be recovered by the self-supply power plant and other generating devices, then the electricity consumed by the factory can be supplied by itself, which can be called the “autarky mode of electricity”. The autarky mode of electricity can improve the recovery of the waste heat and energy, and thus reduce the energy consumption of an iron & steel factory. Based on the BF-BOF steelmaking routes, the energy-flow models for the electricity generating with waste heat and energy are constructed. The autarky modes of electricity of the factories with different production scales are put forward, and the contribution of the mode to energy saving and economic benefits is analyzed.

• Periodical: Advanced Materials Research (Volume 511)
• Pages: 40-45
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.511.40
• Online since: April 2012
• Authors: Jian Jun Wang, Hong Juan Li, Hua Meng
• Keywords: Autarky Mode, Electricity, Energy Saving, Steel Production, Waste Energy, Waste Heat

References

[1] WANG Jian-jun, CAI Jiu-ju, CHEN Chun-xia, Report on residual heat and energy in Chinese steel industry. Industrial Heating, Vol. 36 (2007), pp.1-3(in Chinese).

[2] CAI Jiu-ju, WANG Jian-jun, CHEN Chun-xia, LU Zhong-wu. Recovery of residual-heat integrated Steelworks. Iron and Steel, Vo1. 42(2007), No. 6: 1-7 (in Chinese).

[3] DENG Wan-li, TIAN Jing-long. Efficient utilization of by-product gas in iron & steel complex. National Annual Meeting on Energy and Thermal Engineering 2008: 389-392 (in Chinese).

[4] Nobuhiro MARUOKA, Toshio MIZUOCHI, et al. Feasibility study for recovering waste heat in the steelmaking industry using a chemical recuperator. ISIJ International, Vol. 44 (2004), No. 2: 257–262.

DOI: 10.2355/isijinternational.44.257

[5] G. Bisio. Energy recovery from molten slag and exploitation of the recovered energy. Energy, Vol. 22 (1997), No. 5: 501-509.

DOI: 10.1016/s0360-5442(96)00149-1

[6] WEN Yan-ming, SUN De-min, LI Hong-fu. Investigation into feasibility of power use self-support in iron and steel enterprise. National Annual Meeting on Energy and Thermal Engineering 2008, Invited report: J-N (in Chinese).

[7] TIAN Jing-long. Power Consumption and Power saving analysis in iron & steel plant, National Annual Meeting on Energy and Thermal Engineering 2008: 393-396 (in Chinese).