Coal Particles Combustion Model and Micro Feeding Technology in Drop Tube Furnace

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Abstract:

For investigation of wide use of drop tube furnace (DTF), the design and characterization of DTF and shaftless screw microfeeder are presented. With a developed group combustion model, a introduced non-dimensional number is to characterize the combustion zone of coal particles in DTF. Calculated relation is proposed to be operation criteria of DTF and design principle of feeder. It is found that the test results of coal feeder show good performance for micro feeding.

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Periodical:

Advanced Materials Research (Volumes 236-238)

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680-683

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May 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] Carpenter A M, Skorupska N M. :IEA Coal Research, London(64), 1993.

Google Scholar

[2] Liming Lu, Veena Sahajwalla, David Harris: Energy & Fuels, Vol. 14, 2000, pp.869-876.

Google Scholar

[3] C. J. Hindmarsh, K. M. Thomas, W. X. Wang, H. Y. Cai, A. J. Güell, D. R. Dugwell and R. Kandiyoti: Fuel, Vol.74, Issue 8, August 1995, pp.1185-1190.

DOI: 10.1016/0016-2361(95)00036-5

Google Scholar

[4] S. Kajitani, S. Hara and H. Matsuda: Fuel, Vol. 81, Issue 5, March 2002, pp.539-546.

Google Scholar

[5] Katsuya Ishikawa: Kinetics study of reduction / sulfidation of ZnO and zinc titanate powders in a drop-tube furnace. Massachusetts Institute of Technology Publishers (1995).

Google Scholar

[6] S. P. Visona, B. R. Stanmore: Combustion and Flame, Vol.106, Issue 3, August 1996, pp.207-218.

Google Scholar

[7] K. Annamalai, S.C. Ramalingam: Combustion and Flame, Vol. 70, 1987, pp.307-332.

Google Scholar

[8] Shan Ouyang and Hasina Yeamin: Review of scientific instruments, Vol. 69, number8, 1998, pp.3036-3041.

Google Scholar

[9] Robert J. Flaxman: Flow and Heat Transfer in a Drop Tube Furnace. University of Ottawa, 1986.

Google Scholar

[10] J. P. K. Seville, C. D. Willett, P. C. Knight: Powder Technology, vol.113, 2000, p.261–268.

Google Scholar