Mathematical Model of Forecasting the Coke Quality Indicators

Article Preview

Abstract:

A mathematical model for the forecasting of the basic metallurgical properties of coke depending on the quality indicators of coals and carbonization parameters is developed. The base of the model are the theoretical and statistical dependences of the physico-chemical and petrographic properties of initial coals on the reactivity and mechanical strength of the coke. These indicators depend on diffusion processes during carbonization. On the basis of initial data, the material and heat balance of the coking process are made and the product price is calculated. The full-function program includes: the initial database interactively formed on the basis of the coals quality certificates and concentrates; the calculating unit of forecasting of the coke properties, allowing to fulfil the mathematical model adapting for the concrete industrial conditions of carbonization process; the unit to calculate results. The calculated values, i.e. the Coke Reactivity Index (CRI) and the Coke Strength after Reaction (CSR) can be used further for technical and economical calculations in the balance logic-statistic model of the blast furnace smelting operation. Or using the feedback, it is possible to calculate necessary relations of the burden components for the carbonization.

You might also be interested in these eBooks

Info:

Periodical:

Defect and Diffusion Forum (Volumes 297-301)

Pages:

1290-1294

Citation:

Online since:

April 2010

Export:

Price:

[1] A.V. Chentsov, Yu.A. Chesnokov, S.V. Shavrin. The logic-statistic balance model of blastfurnace smelting process. Second edition. Ekaterinburg, UB of RAS (2003).

Google Scholar

[2] H. Suginobe, T. Miyagawa et al.: Transactions ISIJ Vol. 23 (1983), p.417.

Google Scholar

[3] M.A. Dı´ez, R. Alvarez, C. Barriocanal: Int. J. Coal Geology, Vol. 50 (1990), p.389.

Google Scholar

[4] M.L. Ulanovskii, D.V. Miroshnichenko: Coke and Сhemistry Vol. 50 (2007), p.94.

Google Scholar

[5] P.A. Schukin. Research properties of metallurgical coke. Moscow, Metallurgy (1971).

Google Scholar

[6] N. Nakamura, Y. Togino, T. Tateoka: Behaviour of coke in large blast furnace. Coal, Coke and Blast Furnace. The Metals Society, London (1977) pp.1-18.

Google Scholar

[7] R.R. Thompson , L.G. Benedict: Iron and Steelmaker № 3 (1976), p.21.

Google Scholar

[8] H.S. Valia: Iron and Steelmaker Vol. 5 (1989), p.77.

Google Scholar

[9] Reduction, heat exchange and hydrodynamics in blast furnace process. Part I. Transactions of Institute Metallurgy of UB of RAS, Sverdlovsk, Vol. 24 (1977).

Google Scholar

[10] Yu. A. Chesnokov, A.V. Chentsov, S.V. Shavrin et al.: Definition coefficients of interchangeability coke with model blast furnace process. In: Preprint Mathematical modeling of blast furnace process,. Institute Metallurgy of UB of RAS, Ekaterinburg (1994).

Google Scholar

[11] R. Sharma, P. S. Dash, P. K. Banerjee and D. Kumar: ISIJ International Vol. 45 (2005), p.1820.

Google Scholar

[12] M. Grigore, R. Sakurovs, D. French, V. Sahajwalla: ISIJ International Vol. 46 (2006), p.503.

Google Scholar

[13] H. Yamaoka, S. Suyama: ISIJ International Vol. 43 (2003), p.338.

Google Scholar