Slagging Prediction When Using the Chemical Composition of Fly Particles and the Slagging Probability Model

  • A. N. Alekhnovich
  • V. E. Gladkov
  • V. V. Bogomolov

Abstract

The deposit growth model has been developed by UraIVTI, wherein the fly ash particles are endowed by various properties depending on their part in the deposition. According to the model the contact probability of the particles with various properties which are on the deposit surface and in the fly ash flow is calculated. It was assumed that non-sticky particle can be bonded in the deposit if they come into contact with the matrix (captive) particle on the deposit surface.

The chemical composition of the individual particles of a fly ash has been measured with the help of the SEM/EMPA instrumentation for three coals with a different ash types. The relative deposition rate and the deposit composition have been calculated on the basis of the model. There is a definite accordance between the predicted data and the results, received in the industrial boilers.

Keywords

Deposit Surface Contact Probability Kuznetsk Coal Deposit Growth Slag Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Reference

  1. Alekhnovich, A. N., Bogomolov, V.V., Ivanova, N. I. and Verbovetsky, E. Kh. (1986). “The investigation of Slagging Problems by using synthetic mixtures”: The effect of mineral matter of power–generating fuels on operational conditions of steam boilers. (Issledovanie voprosov shlakovanija pri primenenii sinteticheskih smesey: Vliyanie mineral’noi chastienergeticheskikh topliv na uslovija raboty parovikh kotlov). Tallinn, I, 77–82.Google Scholar
  2. Alekhnovich, A. N. and Bogomolov, V. V. (1988). “ Temperature Conditions of the Start of Slagging when Burning Coals with Ash of Acidic Composition”. Thermal Engineering, 35(I). 20–24.Google Scholar
  3. Alekhnovich, A. N. (1995). “The Probability Model of a Slagging Deposit Formation. (Verojatnostnaja model formirovanija shlakovih otlojeniy)”. Elektricheskie stantsii, 2, 16–22.Google Scholar
  4. Barta, L. E., Beer, I. M., Sarofim, A. F., Teare, V. D. and Togan, M. A. (1993). “Coal Fouling Tendency Model”. In I. Williamson and F. Wigley (Eds.). The Impact of Ash Deposition on Coal Fired Plants. Washington: Taylor & Francis, 177–188.Google Scholar
  5. Borio, R. W., Patel, R. L., Morgan, M. E., Kang, S. G., Erickson, T. A. and 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.Google Scholar
  6. Helble, I. I., Srinivasachar, S., Senior, C. L., Wilemski, G., Baker, I. E., Simons, G. A. and Johnson, S. A. (1992). Pre-print of the Second Australian Workshop on Ash Deposition. Brisbane. Australia.–July 13–14Google Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • A. N. Alekhnovich
    • 1
  • V. E. Gladkov
    • 1
  • V. V. Bogomolov
    • 1
  1. 1.Ural Heat Engineering Institute (UralVTI)ChelyabinskRussia

Personalised recommendations