Skip to main content
Log in

Crushing properties of coal

  • Coal
  • Published:
Coke and Chemistry Aims and scope Submit manuscript

Abstract

Methods of assessing coal strength are compared on the basis of a literature review. The Hardgrove grindability index (HGI) is the most expedient. There is a close relation between HGI and the coal quality, as well as the power consumed in grinding. Accordingly, the HGI values of coal samples may be used to optimize the crushing of coal as a preliminary to coke production.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Eremin, I.V., Lebedev, V.V., and Tsikarev, D.A., Petrografiya i fizicheskie svoistva uglei (Petrography and Physical Properties of Coal), Moscow: Nedra, 1980.

    Google Scholar 

  2. Eremin, I.V., Artser, A.S., and Bronovets, T.M., Petrologiya i khimiko-tekhnologicheskie parametry uglei Kuzbassa (Petrology and Chemical and Technological Parameters of Kuznets Basin Coal), Kemerovo, 2000.

    Google Scholar 

  3. Spravochnik koksokhimika. T. 1. Ugli dlya koksovaniya. Obogashchenie uglei. Podgotovka uglei k koksovaniyu (Handbook of Coke Chemistry, Vol. 1: Coking Coal, Its Enrichment and Preparation), Borisov, L.N. and Shapoval, Yu.G., Eds., Kharkov: ID INZhEK, 2010.

    Google Scholar 

  4. Avgushevich, I.V., Bronovets, T.M., Golovin, G.S., et al., Standartnye metody ispytaniya uglei. Klassifikatsiya uglei (Standard Methods of Coal Testing Coal Classification), Moscow: NTK Trek, 2008.

    Google Scholar 

  5. GOST (State Standard) 15489.1-93: Lignite, Coal, Anthracite, and Fuel Shales: Method of Determining the RTI Crushing Coefficient, 1993.

  6. GOST (State Standard) 15489.2-93 (ISO 5074-80): Coal: Method of Determining the Hardgrove Grindability Index, 1993.

  7. Lebedev, A.N., Podgotovka i razmol topliva na elektrostantsiyakh (Fuel Preparation and Crushing at Power Stations), Moscow: Enegriya, 1969.

    Google Scholar 

  8. Radic, D.B., Obradivic, M.O., Stanojevic, M.M., et al., A study on the grindability of Serbian coals, Therm. Sci., 2011, vol. 15, no. 1, pp. 267–274.

    Article  Google Scholar 

  9. Wall, T., Eliott, L., Sanders, D., and Conroy, A., A Review of the State of the Art in Coal Blending for Power Generation: Final Report, Callaghen, Australia: The University of New Castle, Advanced Technology Centre, 2001, project 3.16, p. 93.

    Google Scholar 

  10. Sligar, J., The Hardgrove grindability index, ACARP Report, 1998, issue 5.

    Google Scholar 

  11. Hower, J.C. and Wild, G.D., Relation between the Hardgrove grindability index and petrographic composition for high-volatile bituminous coals from Kentucky, J. Coal Qual., 1988, no. 7, pp. 122–126.

    Google Scholar 

  12. Trimble, A.S. and Hower, J.C., Studies of the relationship between coal petrology and grinding properties, Int. J. Coal Geol., 2003, vol. 54, pp. 253–260.

    Article  CAS  Google Scholar 

  13. Hower, J.C. Hardgrove grindability index and petrology used as an enhanced predictor of coal feed rate, Energeia, 1990, vol. 1, no. 6, pp. 1–2.

    Google Scholar 

  14. Spero, C., Waloon coals: Their properties and power station performance, Queensland Coal, 1998, March, pp. 26–38.

    Google Scholar 

  15. Urala, S. and Akyildiz, M., Studies of the relationship between mineral matter and grinding properties for low-rank coals, Int. J. Coal Geol., 2004, vol. 60, no. 1, pp. 81–84.

    Article  Google Scholar 

  16. Hsieh, S., Effects of bulk composition on the grindability of coals, PhD Dissertation, University Park: Pennsylvania State University, 1976.

    Google Scholar 

  17. Waters, A., The additive relationship of the Hardgrove grindability index, J. Coal Qual., 1986, vol. 5, no. 1, pp. 33–34.

    Google Scholar 

  18. Khoshjavan, S., Mazlumi, M., and Rezai, M., Estimation of Hardgrove grindability index (HGI) based on the coal chemical properties using artificial neural networks, Oriental J. Chem., 2010, vol. 26(4), pp. 1271–1280.

    Google Scholar 

  19. Sengupta, A.N., An assessment of the grindability index of coal, Fuel Proc. Technol., 2002, vol. 76, no. 1, pp. 1–10.

    Article  CAS  Google Scholar 

  20. Peisheng, L. et al., Prediction of grindability with multivariable regression and neural network in Chinese coal, Fuel, 2005, vol. 84, no. 3/4, pp. 359–368.

    Google Scholar 

  21. Kona, N.R., Fairbanks, H.V., and Leonard, J.W., Low temperature oxidation of coal, Fuel, 1968, vol. 47, pp. 177–183.

    CAS  Google Scholar 

  22. Gray, R.J., Rhoades, A.H., and King, D.T., Detection of oxidized coal and the effect of oxidation on the technological properties, Trans. Soc. Min. Eng., 1976, December, pp. 334–341.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to D. V. Miroshnichenko.

Additional information

Original Russian Text © D.V. Miroshnichenko, 2013, published in Koks i Khimiya, 2013, No. 12, pp. 20–27.

About this article

Cite this article

Miroshnichenko, D.V. Crushing properties of coal. Coke Chem. 56, 449–455 (2013). https://doi.org/10.3103/S1068364X13120090

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S1068364X13120090

Keywords

Navigation