Influence of Carbonaceous materials on the quality of Hematite ore pellets

Ammasi, A and Pal, J (2017) Influence of Carbonaceous materials on the quality of Hematite ore pellets. In: 3rd International Conf. on Science and Technology of ironmaking and steelmaking, Dec. 11- 13th, 2017, Kanpur.

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Abstract

Pellet induration at high temperature for its hardening is an energy intensive process. Therefore, in order to reduce the external energy requirement carbonaceous materials are added to supply in-situ energy on induration. In the present study, different carbonaceous materials viz. Jhamacoal, blast furnace flue dust, and coke powder have been added in pelletization of hematite ore fines to reduce the external energy requirement and to utilize the waste carbonaceous materials. It has been observed that green pellets’ properties are within acceptable limits which are not affected by the presence of the carbonaceous material. The cold compressive strength (CCS) of pellets increases with increasing induration temperature. The furnace-cooled pellets show more strength than air-cooling. Blast Furnace flue dust added pellets show highest CCS among other carbonaceous material added in pellets which is 2515 N /pellet at 1280◦C. RI and RDI has also been influenced by the addition of other carbonaceous materials.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:http://eprints.nmlindia.org/8768
Uncontrolled Keywords:Agglomeration, pelletizing
Divisions:Metal Extraction and Forming
ID Code:7868
Deposited By:Dr. J Pal
Deposited On:17 Sep 2018 10:17
Last Modified:17 Sep 2018 12:06
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