Effect of Iron Ore Lumps and Iron Ore Pellets on Production of Direct Reduced Iron

Meena, Dilip and Raj, Manish and Ranghuwansh, Mansingh and Garg, Vivek and Lakshminarasimham, B (2013) Effect of Iron Ore Lumps and Iron Ore Pellets on Production of Direct Reduced Iron. In: Proceeding of the international coconference on science and technology of ironmaking and steelmaking, December 16-18, 2013, CSIR-NML Jamshedpur.

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Pelletization has proved to be successful way to utilize iron ore fines generated during mining. The difference in chemical composition and physical properties of iron ore and iron ore pellets has impact on quality of direct reduced iron produced. The pellets have higher strength and resistance to disintegration than iron ore lumps, while lumps have better reducibility then pellets. Process parameters like temperature profile, RPM of the Kiln and others has been modified to accommodate this change in physical and chemical properties. Iron ore pellets with lower reducibility than lumps will require higher residence time inside the kiln for same amount of metallization. The overall fines generation inside the kiln is less in case of pellets than lumps. The higher production is obtained with lower feed rate in case of iron ore pellets as compared to Iron ore lumps.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:http://eprints.nmlindia.org/7026
Uncontrolled Keywords:DRI, Iron ore lumps, Iron ore pellets, Rotary kiln and Residence time
Divisions:Material Science and Technology
ID Code:7026
Deposited By:Sahu A K
Deposited On:21 Nov 2014 15:37
Last Modified:21 Nov 2014 15:37
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