Conclusion
Ranging of coals according to the slagging properties of similar type and investigated coals could be made on the basis of the available reference data. However, to define the slagging and fouling properties of a random coal it is necessary to carry out additional laboratory research.
Along the boiler dact various types of deposits are formed depending on temperature zones and properties of coals. We distinguish the following types of deposits: slag, iron enriched, sulphur-bounded, fouling based on active sodium and fine dispersed (loose). The method has been suggested to define the tendency (potential) of a coal to form deposits of various types. It is taken into consideration, that similar deposits could be formed according to different patterns as well as the fact that the forming of deposits of various types may be a competitive process. The latter means, that in specific conditions there are deposits the rate of forming of that is higher.
On the basis of a large experimental material it has been worked out methods of the approximated evaluation of slagging properties using the widely available data and recommendations concerning the use of information on slagging properties of coals for choosing the characteristics of the boiler.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Alekhnovich, A.M. (1996). “The Effect of Operation Conditions on Slagging”. In L. Baxter and R. DeSollar (Eds.). Application of Advanced Technology to Ash-Related Problems in Boilers. New York and London: Plenum Press, 485–493.
Alekhnovich, A.N., Bogomolov, V.V. (1994). “Slagging Property Indices of Coals and Their Use When Designing Boilers”. In I. Williamson and F. Wigley (Eds.). The Impact of Ash Deposition on Coal Fired Plants. Washington: Taylor & Francis, 725–732.
Alekhnovich, A.N., Gladkov, V.E., Bogomolov, V.V. (1996). “Slagging Prediction when Using the Chemical Composition of Fly Ash Individual Particles and the Slagging Probability Model”. In L. Baxter and R. DeSollar (Eds.). Application of Advanced Technology to Ash-Related Problems in Boilers. New York and London: Plenum Press, 557–565.
Allan, S.E., Erickson, T.A., McCollor, D.P. (1996). “Modeling of Ash Deposition in the Convective Pass of a Coal Fired Boiler”. In L. Baxter and R. DeSollar (Eds.). Application of Advanced Technology to Ash-Related Problems in Boilers. New York and London: Plenum Press, 451–470.
Benson, S.A., Steadman, E.N., Zygarlicke, C.J., Erickson, T.A. (1996). “Ash Formation, Deposition, Corrosion and Erosion in Conventional Boilers”. In L. Baxter and R. DeSollar (Eds.). Application of Advanced Technology to Ash-Related Problems in Boilers. New York and London: Plenum Press, 1–15.
Borio, R.W., Patel, R.L., Morgan, M.E., Kang, S.G., Erickson, T.A., Allan, S.E. (1993). “The Coal Quality Expert: A Focus on Slagging and Fouling”. Pre-print of second Annual Clean Coal Technology Conference. Atlanta, USA.—Sept. 7–9.
Cui, Y, Gong, D., Zhou, Y, Li, X. (1994). “A Study of Testing Additives and Application of Chinese Coals”. In I. Williamson and F. Wigley (Eds.). The Impact of Ash Deposition on Coal Fired Plants. Washington: Taylor & Francis, 703–714.
Gibb, W.H. (1996). “The UK Collaborative Research Programme on Slagging Pulverised Coal-Fired Boilers: Summary of Findings”. In L. Baxter and R. DeSollar (Eds.). Application of Advanced Technology to Ash-Related Problems in Boilers. NewYork and London: Plenum Press, 41–65.
Halt, R. (1996). Correlating the Slagging of a Utility Boiler with Coal Characteristics. In L. Baxter and R. DeSollar (Eds.). Application of Advanced Technology to Ash-Related Problems in Boilers. New York and London: Plenum Press, 451–470.
Hurley, J.P, Nowok, J.W., Strobel, T.M., O’Keefe, C.A., Bieber, J.A., Dockter, B.A. (1996). “Rales and Mechanisms of Strength Development in Low-Temperature Ash Deposits”. In L. Baxter and R. DeSollar (Eds.). Application of Advanced Technology to Ash-Related Problems in Boilers. NewYork and London: Plenum Press, 83–96.
McCollor, D.P., Zygarlicke, C.J. (1996). “Mechanisms of Ash Fouling during Low Rank Coal Combustion”. In L. Baxter and R. DeSollar (Eds.). Application of Advanced Technology to Ash-Related Problems in Boilers. NewYork and London: Plenum Press, 223–235.
Mysen, B.O. (1987). “Redox equilibria and coordination of Fe2+ and Fe3+ in silicate glasses from 57 Fe Mossbauer spectroscopy”. Journal of Non-Crystalline Solids, v. 95–96, N I, 247–254.
Pollock, W.H., Goetz, G.I., Park, E.D. (1983). “Advancing the art of boiler design by combining operating experience an advanced coal evaluation techniques”. Proc. Amer. Power Conf., v.45, 102–117.
Richards, G.H., Harb, J.N., Baxter, L.L. (1996). “Investigation of Mechanisms for the Formation of Ash Deposits for Two Powder River Basin Coals”. In L. Baxter and R. DeSollar (Eds.). Application of Advanced Technology to Ash-Related Problems in Boilers. NewYork and London: Plenum Press, 293–308.
Senior, C.M., Srinivasachar, S. (1995). “Viscosity of Ash Particles in Combustion Systems for Prediction of Particle Sticking”. Energy & Fuels. Vol.9, 2, 277–283.
Zygarlicke, C.J., Galbreath, K.C., McCollor, D.P, Tomen, D.L. (1996). “Development of Fireside Performance Indices for Coal Fired Utility Boilers”. In L. Baxter and R. DeSollar (Eds.). Application of Advanced Technology to Ash-Related Problems in Boilers. NewYork and London: Plenum Press, 617–636.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2002 Kluwer Academic Publishers
About this chapter
Cite this chapter
Alekhnovich, A.N., Artemjeva, N.V., Bogomolov, V.V., Shchelokov, V.I., Petukhov, V.G. (2002). Prognosis of Slagging and Fouling Properties of Coals Based on Widely Available Data and Results of Additional Measuraments. In: Gupta, R.P., Wall, T.F., Baxter, L. (eds) Impact of Mineral Impurities in Solid Fuel Combustion. Springer, Boston, MA. https://doi.org/10.1007/0-306-46920-0_34
Download citation
DOI: https://doi.org/10.1007/0-306-46920-0_34
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-306-46126-2
Online ISBN: 978-0-306-46920-6
eBook Packages: Springer Book Archive