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Journal of the Southern African Institute of Mining and Metallurgy

versión On-line ISSN 2411-9717
versión impresa ISSN 0038-223X


DABBAGH, A.; HEIDARY MOGHADAM, A.; NADERI, S.  y  HAMDI, M.. A study on the effect of coke particle size on the thermal profile of the sinters produced in Esfahan Steel Company (ESCO). J. S. Afr. Inst. Min. Metall. [online]. 2013, vol.113, n.12, pp.941-945. ISSN 2411-9717.

The aim of this research was to investigate the effect of coke particle size on the thermal profile of the charge bed in the sintering process of iron ore. Six different ranges of coke particle size that could be used in practice in the sintering line of Esfahan Steel Company (ESCO) were used while parameters such as ratios and particle sizes of other ingredients, ignition temperature, and suction power were kept constant. Thermal profiles were obtained by measuring the temperature changes at three points in the sintering bed. The influence of coke particle size on rate of temperature rise, maximum temperature of the sintering bed, and the flame front velocity of the sintering bed was determined by analysing the thermal profiles. Moreover, the cold strengths of the sinters were measured using the Tumbler method. The results indicated that the coke particle size has a significant impact on the thermal properties of the sintering bed. Based on the results, a coke particle size between 0.212 mm and 3.350 mm was determined as the optimal range for the specific conditions in the sintering line of ESCO.

Palabras clave : iron ore sintering; coke particle size; thermal profile; flame front velocity; Tumbler index.

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