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Properties and Potential Uses of the Products Resulting from Bed Combustion of Coal Washery Wastes the Fluidised

Published online by Cambridge University Press:  25 February 2011

Denis G. Montgomery
Denis G. Montgomery*
Affiliation:
Department of Civil and Mining Engineering, University of Wollongong, Wollongong, N.S.W., Australia
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Abstract

A fluidised bed combustion (FBC) process has been developed to a stage that both coarse rejects and tailings from coal washery plants may be successfully combusted. During the combustion process excess heat is produced, and the products from the process, spent rejects and primary and secondary cyclone fines, are reduced in volume compared to the input material. Results of preliminary investigations into the properties of the spent rejects and cyclone fines are reported. A program has been initiated to investigate and evaluate the potential uses of the FBC process, including the use of the products in stabilised and unstabilised forms in road construction, as a material suitable for the construction of embankments, and in lean concrete mixes either as an aggregate or as a pozzolan.The characteristics of the FBC products are compared, where appropriate, with those of the unburnt coal washery wastes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 43: Symposium M – Fly Ash and Coal Conversion By-Products I , 1984 , 119
Copyright
Copyright © Materials Research Society 1985

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References

1. Szpindler, G.a.D., Waters, P.L. and Young, C.C., Proc. 2nd Nat.Chem. Eng.Conf., Brisbane, 391 (1974).Google Scholar
2. LaNauze, R.D., Duffy, G.J. and Sanderson, R., 8th Aust.Chem.Eng.Conf., Melbourne, 238 (1980).Google Scholar
3. Sherwood, P.T., TRRL Report 647, Transport and Road Research Laboratory, Dept. of Environment, Crowthorne, U.K. (1974).Google Scholar
4. Stockton, N.D., Aust.Coal Industries Research Laboratories Ltd., Report 09/1202 (1981).Google Scholar
5. Corkery, R.W., Geol.Surv. of N.S.W., Dept. of Mines, Report GS1976/309 (1976).Google Scholar
6. Ministry of Transport, Spec. for Roads and Bridgeworks, H.M.S.O., London (1969).Google Scholar
7. LaNauze, R.D., in Advanced Combustion Methods, Academic Press (1984).Google Scholar
8. Randell, A.A., Gauld, D.W., Dando, R.L. and LaNauze, R.D., Proc.Eng.Foundation Conf., C.U.P., 286 (1979).Google Scholar
9. Belting, K.W., World Coal 5, 30 (1979).Google Scholar
10. Lutes, I.G. and Wachtler, F.C., Proc.6th Int.Conf. on Fluidised Bed Combustion, Atlanta, Georgia, Vol.II, 405 (1980).Google Scholar
11. Zhang, X.Y., Proc.6th Int.Conf. on Fluidised Bed Combustion, Atlanta, Georgia, Vol.1, 36 (1980).Google Scholar
12. Duffy, G.J., Private communication (1984).Google Scholar
13. Duffy, G.J. and Kable, J.W., C.S.I.RO., Division of Fossil Fuels, Invest. Report 142 (1984).Google Scholar
14. Duffy, G.J. and Kable, J.W., Chem.Eng.Aust., Ch.E. 4, 42 (1979).Google Scholar
15. Waters, P.L., Mine and Quarry Mechanisation, 184 (1976).Google Scholar
16. LaNauze, R.D. and Duffy, G.J., A.M.I.C. Environmental Workshop (1984).Google Scholar
17. Department of Main Roads, M.R. Form 744 (1979).Google Scholar
18. Hoffman, D.C., Briggs, R.W. and Michalski, S.R., U.S.A. E.P.A./D.O.E. Report E.P.A.-600/7–79-007 (1979).Google Scholar
19. Terzaghi, K. and Peck, R.B., Soil Mechanics in Engineering Practice, Wiley (1962)Google Scholar
20. Waters, P.L., Inst. of Quarrying, Aust.Div. 15, 3, 19 (1975).Google Scholar
21. Beretka, J., Survey of Major Industrial Wastes and By-Products in Australia, Div.Building Research, C.S.I.R.O. (1978).Google Scholar
22. Pearson-Kirk, D. and Montgomery, D.G., 2nd Aust.Conf. on Eng.Materials, Sydney, 261 (1981).Google Scholar