Iron ore slime as an alternate coolant in steelmaking: Performance evaluation at commercial scale

Rajshekhar, Y and Alex, T C and Sahoo, D P and Babu, G A and Balakrishnan, V and Venugopalan, T and Kumar, Sanjay (2016) Iron ore slime as an alternate coolant in steelmaking: Performance evaluation at commercial scale. Journal Of Cleaner Production, 139 (IF- 5.715). pp. 886-893.

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This paper describes an attempt to utilize iron ore slime in basic oxygen steelmaking as a coolant (instead of lump iron ore). Prior to its use, it is briquetted for ease of charging. The tests are carried out in a regular, commercial basic oxygen steelmaking furnace (160 ton/batch, and duration about 45 min). Substitution of lump ore (with slime briquette) in various tests has been in the range of 30-100%. Results turn down temperature is well maintained, phosphorous is below the target limit, lime consumption is similar to that with lump ore-indicate that slime briquette is a good coolant and can substitute the scarcely available lump ore in steelmaking. Thus, 10-15% of the slime generated can be gainfully utilized in the steelmaking process. This will make the lump ore (used in steelmaking) available for blast furnace iron making. This approach, an eco-innovation (involving an innovative practice combining economic and ecological-resource benefits) is a sustainable solution to the burgeoning slime accumulation, and makes iron and steel sector industries less vulnerable to environmental regulations. (C) 2016 Elsevier Ltd. All rights reserved.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Iron ore slime; Cold bonded briquette; Coolant; Basic oxygen steelmaking; Turndown temperature; Sustainability
Divisions:Metal Extraction and Forming
ID Code:7540
Deposited By:Sahu A K
Deposited On:16 Aug 2017 11:40
Last Modified:16 Aug 2017 11:40
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