Numerical Simulation of the Cooling Process of the Blast Furnace Slag Fiber

Abstract:

The cooling process of the blast furnace slag fibers was simulated and calculated by the numerical simulation software. The different length-diameter ratio fibers for 100:1 and 1000:1 were chosen and the temperature fields of the fibers cooling process under the different conditions were analyzed. The results showed that the single fiber’s solidification has begun at 0.1s, the fiber forms the whole shell on its surface at 0.9s, and the center of the fiber become solid at about 1.5s. Multi-fibers cooling process is different from the single fiber and the solidification time obviously become longer. 3-fibers’ solidification performs began at about 0.1s, and the whole solidification process needs about 5s.

• Periodical: Advanced Materials Research (Volume 934)
• Pages: 223-229
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.934.223
• Online since: May 2014
• Authors: Wei Zhang, Xu Wang, Hong Wei Xing*
• Keywords: Blast Furnace Slag, Cooling Process, Numerical Simulation, Slag Fiber, Solidification

References

[1] X. Liu, L. Zhang, Y. Li, et al: Energy-saving slag thermal insulator, China patent, 201010225763. (2010).

[2] N. Maruoka, T. Mizuochi, H. Purwanto: Feasibility study for recovering waste heat in the steelmaking industry using a chemical recuperator, ISIJ International, Vol. 44 (2), (2004), pp.257-262.

DOI: 10.2355/isijinternational.44.257

[3] G. Bisio: Energy recovery from molten slag and exploitation of recovered energy, Energy, Vol. 22, (1997), pp.400-550.

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

[4] K. Nagata, H. Ohara and Y. Nakagome: The heat transfer performance of a gas-solid sontactor with regularly arranged baffle plates, Powder Technol., Vol. 99, (1998), pp.302-307.

DOI: 10.1016/s0032-5910(98)00127-2

[5] H. Wang, C. Zhang, Y. Qi, et al: Present situation and development trend of blast furnace slag treatment, Iron and Steel, Vol. 42 (6), (2007), pp.83-87.

[6] H. Shen: An overview of recovery of metals from slags, Waste Management, Vol. 23, (2003), pp.933-949.

DOI: 10.1016/s0956-053x(02)00164-2

[7] R. Slot, A. Jchn: The fabrication of glass-ceramic materials based on blast furnace slag-a review, Journal of the Canadian Ceramic Society, Vol. 45, (1976), pp.63-67.

[8] A. Marabini, P. Plescia, D. Maccari, et al: New materials from industrial and wastes: glass–ceramics and glass- and rock-wool Fiber, Int J Miner Process, Vol. 53, (1998), pp.121-134.

DOI: 10.1016/s0301-7516(97)00062-8

[9] T. Niehoff: Method for producing mineral wool, United States patent: 2009314035A1, (2009).

[10] I. Charge: Method and Apparatus for high throughput generation of fibers by charge injection, United States patent, 20010785088, (2001).

[11] K. Otaki: Method and apparatus for producing glass fiber, United States patent, 2009314036A1, (2009).

[12] S. Patankar: Numerical heat transfer and fluid flow, McGraw Hill Book Company, pp.10-11, (1980).

[13] J. Lee, C. Chen: Numerical Simulation of line puff via RNG k-ε model, Communication of Nonlinear Science and Numerical Simulation, Vol. 16 (4), (1996), pp.15-19.

DOI: 10.1016/s1007-5704(96)90045-3