期刊
JOURNAL OF CLEANER PRODUCTION
卷 139, 期 -, 页码 886-893出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2016.08.099
关键词
Iron ore slime; Cold bonded briquette; Coolant; Basic oxygen steelmaking; Turndown temperature; Sustainability
资金
- Tata Steel
- CSIR-NML
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.
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