Abstract
The maximum possibility of utilizing the Indian coking coals and inferior grade coking coal for producing metalurgical coke through non Grecovery stamp charging technology was investigated. Indian indigenous coals contained low percent of vitrinite (<50%) and higher content of ash (> 15%) compared to imported coking coal. Therefore, the selection of appropriate proportion of diferent types of coals was a major chalenge for coke makers. Coal blend selection criterion based on a single coeficient, named as composite coking potential (CCP), was develG oped. The use of increased proportion of semisoft coal (crucible sweling number of 2. 5) and high ash (≥15%) indigenous coal in the range of 20%–35% and 20%–65% respectively in the blends resulted in good quality of coke. Plant data of a nonGrecovery coke oven were used for developing and validating the model. The results showed that the coke strength after reaction (CSR) varied in the range of 63.7%–67.7% and the M40 value was between 81.8 and 89.3 in both the cases.
Similar content being viewed by others
References
S. G. Chaudhuri, A. K. Mukherjee, K. K. Roychoudhury, in: Proceedings of National Seminar on Coal for Blast Furnace Coke and for Injection, Publications and Information Directorate, New Dehli, Iamshedpur, India, 1990, pp. 65–76.
R. Zimmerman, Evaluating and Testing the Coking Properties of Coal, Miller and Freeman Publications Inc., San Francisco, 1979.
M. Kemal, V. Arslan, Coal Technology, Dokuzeylul University, Izmir, Turkey, 2005.
T. G. Callcott, Principles for Blending Coals, BHP Technical Bulletin 23 (1979) No. 2, 49–53.
F. Anzu, in: Proceedings of the 39th Ironmaking Conference, The Society, Washington, 1980, pp. 192–200.
W. H. Van Niekerk, R. J. Dippenaar, J. S. Afr. Inst. Min. Metall. 91 (1991) 53–61.
P. P. Kumar, S. Barman, M. Ranjan, S. Ghosh, V. V. S. Raju, Ironmak. Steelmak. 35 (2008) 33–37.
A. Gupta, A. K. Das, G. I. S. Chauhan, Int. J. Coal Prep. Util. 27 (2007) 28–38.
A. Suresh, T. Ray, P. S. Dash, P. K. Banerjee, Ironmak. Steelmak. 39 (2012) 363–369.
J. P. Graham, H. C. Wilkinson, Coke Quality and Its Relation to Coal Properties. Charge Preparation and Carbonization Practices, The Coke Oven Managers, 1980.
B. Duchene, J. Steiler, B. Rouzaud, in: Fifth Int. Iron and Steel Congress, Ironmaking Proc. Vol. 45, PTD, Washington DC, 1986, pp. 211–219.
R. J. Gray, P. E. Champagne, in: Proceedings of the 47th Ironmaking Conference, Iron and Steel Society, USA, 1988, pp. 313–324.
J. T. Price, J. F. Gransden, M. A. Khan, in: Proceedings of the 47th Ironmaking Conference, Iron and Steel Society, USA, 1988, pp. 1542–1562.
A. H. Clements, T. W. Matheson, Fuel 74 (1995) 57–62.
P. Prachethan Kumar, S. C. Barman, S. Singh, M. Ranjan, Ironmak. Steelmak. 35 (2008) 416–420.
H. P. Tiwari, S. Suri, P. K. Banerjee, S. K. Haidar, P. Sarkar, R. Agarwal, ECIC, Dusseldorf, Germany, Section 22, 2011, pp. 1–7.
H. P. Tiwari, P. K. Banerjee, V. K. Saxena, Fuel 107 (2013) 615–622.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Tiwari, H.P., Banerjee, P.K., Saxena, V.K. et al. Effect of Indian Medium Coking Coal on Coke Quality in Non-recovery Stamp Charged Coke Oven. J. Iron Steel Res. Int. 21, 673–678 (2014). https://doi.org/10.1016/S1006-706X(14)60104-7
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1016/S1006-706X(14)60104-7